BUG: JavaScript error when using moderator tools in topics view

[johnhenley]

Describe the bug

Using a moderator action from the topics view displays an error message. The action completes successfully; the error is on reloading the topics view.

Software Versions

• DNN: 09.12.00
• Module: 08.00.01

To Reproduce

Steps to reproduce the behavior:

1. Add a topic
2. display the topic as a moderator
3. Click on an action such as delete or move
4. See error

[johnhenley]

There is JavaScript that is looking for a div with id = 'afgrid' to add a "loading" spinner/element.

That div was removed from TopicsView.ascx in v8 in the Community-Default theme.

Several issues need to be corrected:

1. Never rely on a specific ID to be present in an editable template
2. More defensive JavaScript -- don't fail when an element is missing and it's not a critical piece of the UI (it's a spinner :)