Use contains_url filter for navigating files and showing a file index for a room.

#652

Vector/ViewController/HomeMessagesSearchViewController.m

@@ -90,7 +90,7 @@
         if (self.dataSource.searchText.length)
         {
             self.shouldScrollToBottomOnRefresh = YES;
-            [self.dataSource searchMessageText:self.dataSource.searchText force:YES];
+            [self.dataSource searchMessages:self.dataSource.searchText force:YES];
         }
     }
 }