fix: Various fixes for collaborative editing beta (#2561)

* fix: Remove Saving… message when collab enabled

* chore: Add tracing extension to collaboration server

* fix: Incorrect debounce behavior due to missing timestamps on events, fixes abundence of notifications when editing in realtime collab mode

* fix: Reload document prompt when collab editing

app/scenes/Document/components/Document.js

@@ -90,7 +90,7 @@ class DocumentScene extends React.Component<Props> {
       this.updateIsDirty();
     }
 
-    if (this.props.readOnly) {
+    if (this.props.readOnly || auth.team?.collaborativeEditing) {
       this.lastRevision = document.revision;
 
       if (document.title !== this.title) {