List cleanup on remove (#1069)

* 💄 Hide Add to List option on own profile

* ✨ Remove Lists tab when last list is removed

* ✨ Add listener to list delete on profile screen

* ✨ Only show save changes in list modal when changes are made

src/state/models/ui/profile.ts

@@ -87,7 +87,10 @@ export class ProfileUiModel {
   }
 
   get selectedView() {
-    return this.selectorItems[this.selectedViewIndex]
+    // If, for whatever reason, the selected view index is not available, default back to posts
+    // This can happen when the user was focused on a view but performed an action that caused
+    // the view to disappear (e.g. deleting the last list in their list of lists https://imgflip.com/i/7txu1y)
+    return this.selectorItems[this.selectedViewIndex] || Sections.Posts
   }
 
   get uiItems() {