v0.4.4 polishing (#515)

* Fixed a bad comparision between JsonElement and null.

* Removed console.logs. Fixed bug in edit collection detail page where summary wouldn't update after editing it.

* Removed a UI package that is no longer used.

Fixed an issue where MarkVolumeAsUnread was using an old set of APIs and now uses the new, faster API.

UI/Web/package.json

@@ -40,7 +40,6 @@
     "lazysizes": "^5.3.2",
     "ng-circle-progress": "^1.6.0",
     "ng-lazyload-image": "^9.1.0",
-    "ng-sidebar": "^9.4.2",
     "ngx-file-drop": "^11.1.0",
     "ngx-toastr": "^13.2.1",
     "rxjs": "~6.6.0",