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, 3 insertions, 0 deletions

diff --git a/viewer/src/plugins/asyncLib.ts b/viewer/src/plugins/asyncLib.ts
new file mode 100644
index 0000000..de4f7ee
--- /dev/null
+++ b/viewer/src/plugins/asyncLib.ts
@@ -0,0 +1,3 @@
+
+export const importFaIcon = async() => (await import(/* webpackChunkName: "icons" */ '@fortawesome/vue-fontawesome')).FontAwesomeIcon;
+export const importHammer = async() => import(/* webpackChunkName: "hammer" */'hammerjs');