viewer: migrate to vue 3, general refactoring and cleanup

Non-exhaustive list of fixes and improvements done at the same time:

- html default background to grey (avoids white flash during init)
- unified links behavior
- added more theme variables
- removed the flex-expand transition (it wasn't working) and replaced it
  with a slide
- fixed LdLoading not centered on the content
- title on removable tags
- fixed an issue with encoded URI from vue-router
- unified Item resource URLs
- removed the iframe for PlainTextViewer (it wasn't working properly)
  and replaced it with a pre
- fixed clear and search buttons tabindex
- fixed the information panel bumping up during the fade animation of
  tag's dropdown
- fixed some focus outlines not appearing correctly
- moved CSS variables to the :root context
- Code cleaning

GitHub: closes #217
GitHub: closes #300
GitHub: closes #297
GitHub: closes #105
GitHub: closes #267
GitHub: closes #275
GitHub: closes #228
GitHub: closes #215
GitHub: closes #112

1 files changed, 0 insertions, 7 deletions

diff --git a/viewer/src/services/fetchWithCheck.ts b/viewer/src/services/fetchWithCheck.ts
deleted file mode 100644
index e84e8b6..0000000
--- a/viewer/src/services/fetchWithCheck.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-export default class FetchWithCheck {
-  static async get(url: RequestInfo): Promise<Response> {
-    const response = await fetch(url);
-    if (!response.ok) throw new Error(`${response.status}: ${response.statusText}`);
-    return response;
-  }
-}