Wrap the logo-container div in an <a href='/'> so clicking the
OxiCloud logo navigates back to the root/home view, matching the
widely accepted web convention.
Fixes#97
Replaced the hidden dropzone-only progress bar with a floating
upload toast that appears at the bottom-right corner whenever
files are being uploaded (button or drag-and-drop).
Features:
- Per-file progress bar with real byte-level tracking via XHR
- Spinning icon while uploading, green check on success, red on error
- Overall progress bar and file counter in the footer
- Auto-hides 4 seconds after all uploads complete
- Dismiss button to minimise the toast
- Works for both file and folder uploads
- i18n keys added to all 8 locale files
- Service worker cache bumped to v3
checkAuthentication() used await for the OIDC exchange fetch but was
declared as a regular function, not async. This caused a JavaScript
syntax error that prevented the entire app.js file from parsing,
resulting in a completely non-interactive frontend after OIDC login.
Also bumped service worker cache version to v2 so browsers
discard stale cached JS files on the next load.
Dionisio