move clear actions to coroutine block

feature/bookmarks/impl/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/bookmarks/impl/BookmarksViewModel.kt

@@ -98,9 +98,9 @@ class BookmarksViewModel @Inject constructor(
             lastRemovedBookmarkId?.let {
                 userDataRepository.setNewsResourceBookmarked(it, true)
             }
-        }
             clearUndoState()
         }
+    }
 
     fun clearUndoState() {
         lastRemovedBookmarkId = null
@@ -136,9 +136,9 @@ class BookmarksViewModel @Inject constructor(
                     userDataRepository.setBookmarkNote(id, note)
                 }
             }
-        }
             clearBulkUndoState()
         }
+    }
 
     fun clearBulkUndoState() {
         bulkRemoveSnapshot = emptyList()