UI updates (#922)

* Fixed download spinner in player component

* Downloads UI is more mobile friendly (#905)

* Code cleanup

* Fixed size of actions in home screen downloads

* Errored downloads now display their stage as "Error" in the UI

* Moved personal settings from about dialog to profile dialog

* Profile dialog can now be opened without logging in/without multi-user mode

* Fixed issue where archive dialog could be accessed from anywhere

* Misc internationalization improvements

* Combined download stage and download progress columns

* Added back loading spinner to download actions

* Adjusted thresholds for consolidating download action buttons

* Implemented virtual scrolling for notifications (helps if many notifications exist)

* Fixed minor console error

src/app/main/main.component.html

@@ -205,7 +205,7 @@
 </div>
 
 <div style="display: flex; justify-content: center;" *ngIf="downloads && downloads.length > 0 && !autoplay">
-    <app-downloads style="width: 80%; margin-bottom: 10px" [uids]="download_uids"></app-downloads>
+    <app-downloads style="width: 80%; min-width: 350px; margin-bottom: 10px" [uids]="download_uids"></app-downloads>
 </div>
 
 <ng-container *ngIf="cachedFileManagerEnabled || fileManagerEnabled">