Add support for opening document sidebar (comments,history,insights) on mobile

app/stores/UiStore.ts

@@ -42,9 +42,6 @@ class UiStore {
   @observable
   observingUserId: string | undefined;
 
-  @observable
-  commandBarOpenedFromSidebar = false;
-
   @observable
   progressBarVisible = false;
 
@@ -236,16 +233,6 @@ class UiStore {
     this.mobileSidebarVisible = !this.mobileSidebarVisible;
   };
 
-  @action
-  commandBarOpened = () => {
-    this.commandBarOpenedFromSidebar = true;
-  };
-
-  @action
-  commandBarClosed = () => {
-    this.commandBarOpenedFromSidebar = false;
-  };
-
   @action
   hideMobileSidebar = () => {
     this.mobileSidebarVisible = false;