Add explaining comments

src/viewmodels/RootViewModel.ts

@@ -23,6 +23,7 @@ export class RootViewModel extends ViewModel {
         this._client = new Client(this.platform);
         this._setupNavigation();
         this._messageFromParent.on("maximize", () => this._showTimeline(Promise.resolve()));
+        // Chatterbox can be minimized via the start button on the parent page!
         this._messageFromParent.on("minimize", () => this.minimizeChatterbox());
     }
 
@@ -97,6 +98,11 @@ export class RootViewModel extends ViewModel {
                 const newCount = room.notificationCount;
                 if (newCount !== previousCount) {
                     if (!room.isUnread && newCount !== 0) {
+                        /*
+                        when chatterbox is maximized and there are previous unread messages,
+                        this condition is hit but we still want to send the notification count so that 
+                        the badge zeroes out.
+                        */
                         room.clearUnread();
                         return;
                     }