Various commenting improvements (#4941)

* fix: New threads attached to previous as replies

* fix: Cannot use floating toolbar properly in comments

* perf: Avoid re-writing history on click in editor

* fix: Comment on text selection

* fix: 'Copy link' on comments uses wrong hostname

* Show comment buttons on input focus rather than non-empty input
Increase maximum sidebar size

* Allow opening comments from document menu

* fix: Clicking comment menu should not focus thread

* fix: Selection color

* fix: Draft comments not restored

* Add border above document level comment input

* fix: Floating toolbar not constrainted by offset parent

* fix flash of no comment on saving

* fix: Clicking on editor does not remove draft mark

app/scenes/Document/components/Editor.tsx

@@ -86,20 +86,14 @@ function DocumentEditor(props: Props, ref: React.RefObject<any>) {
   );
 
   const handleClickComment = React.useCallback(
-    (commentId?: string) => {
-      if (commentId) {
-        ui.expandComments();
-        history.replace({
-          pathname: window.location.pathname.replace(/\/history$/, ""),
-          state: { commentId },
-        });
-      } else if (focusedComment) {
-        history.replace({
-          pathname: window.location.pathname,
-        });
-      }
+    (commentId: string) => {
+      ui.expandComments();
+      history.replace({
+        pathname: window.location.pathname.replace(/\/history$/, ""),
+        state: { commentId },
+      });
     },
-    [ui, focusedComment, history]
+    [ui, history]
   );
 
   // Create a Comment model in local store when a comment mark is created, this