viewer: project configuration

- Libraries update, removed the obsolete babel proposals plugins
- vue/cli version check on start

4 files changed, 1058 insertions, 1097 deletions

diff --git a/viewer/babel.config.js b/viewer/babel.config.js
index 7102a6e..1378522 100644
--- a/viewer/babel.config.js
+++ b/viewer/babel.config.js
@@ -1,7 +1,5 @@
 module.exports = {
   presets: ["@vue/cli-plugin-babel/preset"],
   plugins: [
-    '@babel/plugin-proposal-optional-chaining',
-    '@babel/plugin-proposal-nullish-coalescing-operator',
   ],
 };
diff --git a/viewer/package-lock.json b/viewer/package-lock.json
index 4b778a3..87825c8 100644
--- a/viewer/package-lock.json
+++ b/viewer/package-lock.json
@@ -14,28 +14,28 @@
       }
     },
     "@babel/compat-data": {
-      "version": "7.8.1",
-      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.8.1.tgz",
-      "integrity": "sha512-Z+6ZOXvyOWYxJ50BwxzdhRnRsGST8Y3jaZgxYig575lTjVSs3KtJnmESwZegg6e2Dn0td1eDhoWlp1wI4BTCPw==",
+      "version": "7.8.5",
+      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.8.5.tgz",
+      "integrity": "sha512-jWYUqQX/ObOhG1UiEkbH5SANsE/8oKXiQWjj7p7xgj9Zmnt//aUvyz4dBkK0HNsS8/cbyC5NmmH87VekW+mXFg==",
       "dev": true,
       "requires": {
-        "browserslist": "^4.8.2",
+        "browserslist": "^4.8.5",
         "invariant": "^2.2.4",
         "semver": "^5.5.0"
       }
     },
     "@babel/core": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.8.3.tgz",
-      "integrity": "sha512-4XFkf8AwyrEG7Ziu3L2L0Cv+WyY47Tcsp70JFmpftbAA1K7YL/sgE9jh9HyNj08Y/U50ItUchpN0w6HxAoX1rA==",
+      "version": "7.8.4",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.8.4.tgz",
+      "integrity": "sha512-0LiLrB2PwrVI+a2/IEskBopDYSd8BCb3rOvH7D5tzoWd696TBEduBvuLVm4Nx6rltrLZqvI3MCalB2K2aVzQjA==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.8.3",
-        "@babel/generator": "^7.8.3",
-        "@babel/helpers": "^7.8.3",
-        "@babel/parser": "^7.8.3",
+        "@babel/generator": "^7.8.4",
+        "@babel/helpers": "^7.8.4",
+        "@babel/parser": "^7.8.4",
         "@babel/template": "^7.8.3",
-        "@babel/traverse": "^7.8.3",
+        "@babel/traverse": "^7.8.4",
         "@babel/types": "^7.8.3",
         "convert-source-map": "^1.7.0",
         "debug": "^4.1.0",
@@ -66,19 +66,33 @@
             "esutils": "^2.0.2",
             "js-tokens": "^4.0.0"
           }
+        },
+        "source-map": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "dev": true
         }
       }
     },
     "@babel/generator": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.8.3.tgz",
-      "integrity": "sha512-WjoPk8hRpDRqqzRpvaR8/gDUPkrnOOeuT2m8cNICJtZH6mwaCo3v0OKMI7Y6SM1pBtyijnLtAL0HDi41pf41ug==",
+      "version": "7.8.4",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.8.4.tgz",
+      "integrity": "sha512-PwhclGdRpNAf3IxZb0YVuITPZmmrXz9zf6fH8lT4XbrmfQKr6ryBzhv593P5C6poJRciFCL/eHGW2NuGrgEyxA==",
       "dev": true,
       "requires": {
         "@babel/types": "^7.8.3",
         "jsesc": "^2.5.1",
         "lodash": "^4.17.13",
         "source-map": "^0.5.0"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "dev": true
+        }
       }
     },
     "@babel/helper-annotate-as-pure": {
@@ -112,15 +126,15 @@
       }
     },
     "@babel/helper-compilation-targets": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.8.3.tgz",
-      "integrity": "sha512-JLylPCsFjhLN+6uBSSh3iYdxKdeO9MNmoY96PE/99d8kyBFaXLORtAVhqN6iHa+wtPeqxKLghDOZry0+Aiw9Tw==",
+      "version": "7.8.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.8.4.tgz",
+      "integrity": "sha512-3k3BsKMvPp5bjxgMdrFyq0UaEO48HciVrOVF0+lon8pp95cyJ2ujAh0TrBHNMnJGT2rr0iKOJPFFbSqjDyf/Pg==",
       "dev": true,
       "requires": {
-        "@babel/compat-data": "^7.8.1",
-        "browserslist": "^4.8.2",
+        "@babel/compat-data": "^7.8.4",
+        "browserslist": "^4.8.5",
         "invariant": "^2.2.4",
-        "levenary": "^1.1.0",
+        "levenary": "^1.1.1",
         "semver": "^5.5.0"
       }
     },
@@ -136,14 +150,6 @@
         "@babel/helper-plugin-utils": "^7.8.3",
         "@babel/helper-replace-supers": "^7.8.3",
         "@babel/helper-split-export-declaration": "^7.8.3"
-      },
-      "dependencies": {
-        "@babel/helper-plugin-utils": {
-          "version": "7.8.3",
-          "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.8.3.tgz",
-          "integrity": "sha512-j+fq49Xds2smCUNYmEHF9kGNkhbet6yVIBp4e6oeQpH1RUs/Ir06xUKzDjDkGcaaokPiTNs2JBWHjaE4csUkZQ==",
-          "dev": true
-        }
       }
     },
     "@babel/helper-create-regexp-features-plugin": {
@@ -248,9 +254,9 @@
       }
     },
     "@babel/helper-plugin-utils": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.0.0.tgz",
-      "integrity": "sha512-CYAOUCARwExnEixLdB6sDm2dIJ/YgEAKDM1MOeMeZu9Ld/bDgVo8aiWrXwcY7OBh+1Ea2uUcVRcxKk0GJvW7QA==",
+      "version": "7.8.3",
+      "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.8.3.tgz",
+      "integrity": "sha512-j+fq49Xds2smCUNYmEHF9kGNkhbet6yVIBp4e6oeQpH1RUs/Ir06xUKzDjDkGcaaokPiTNs2JBWHjaE4csUkZQ==",
       "dev": true
     },
     "@babel/helper-regex": {
@@ -319,13 +325,13 @@
       }
     },
     "@babel/helpers": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.8.3.tgz",
-      "integrity": "sha512-LmU3q9Pah/XyZU89QvBgGt+BCsTPoQa+73RxAQh8fb8qkDyIfeQnmgs+hvzhTCKTzqOyk7JTkS3MS1S8Mq5yrQ==",
+      "version": "7.8.4",
+      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.8.4.tgz",
+      "integrity": "sha512-VPbe7wcQ4chu4TDQjimHv/5tj73qz88o12EPkO2ValS2QiQS/1F2SsjyIGNnAD0vF/nZS6Cf9i+vW6HIlnaR8w==",
       "dev": true,
       "requires": {
         "@babel/template": "^7.8.3",
-        "@babel/traverse": "^7.8.3",
+        "@babel/traverse": "^7.8.4",
         "@babel/types": "^7.8.3"
       }
     },
@@ -341,9 +347,9 @@
       }
     },
     "@babel/parser": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.8.3.tgz",
-      "integrity": "sha512-/V72F4Yp/qmHaTALizEm9Gf2eQHV3QyTL3K0cNfijwnMnb1L+LDlAubb/ZnSdGAVzVSWakujHYs1I26x66sMeQ==",
+      "version": "7.8.4",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.8.4.tgz",
+      "integrity": "sha512-0fKu/QqildpXmPVaRBoXOlyBb3MC+J0A66x97qEfLOMkn3u6nfY5esWogQwi/K0BjASYy4DbnsEWnpNL6qT5Mw==",
       "dev": true
     },
     "@babel/plugin-proposal-async-generator-functions": {
@@ -355,14 +361,6 @@
         "@babel/helper-plugin-utils": "^7.8.3",
         "@babel/helper-remap-async-to-generator": "^7.8.3",
         "@babel/plugin-syntax-async-generators": "^7.8.0"
-      },
-      "dependencies": {
-        "@babel/helper-plugin-utils": {
-          "version": "7.8.3",
-          "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.8.3.tgz",
-          "integrity": "sha512-j+fq49Xds2smCUNYmEHF9kGNkhbet6yVIBp4e6oeQpH1RUs/Ir06xUKzDjDkGcaaokPiTNs2JBWHjaE4csUkZQ==",
-          "dev": true
-        }
       }
     },
     "@babel/plugin-proposal-class-properties": {
@@ -373,14 +371,6 @@
       "requires": {