Lock the editing of the topic and tags of the question if moderated

[akatsoulas]

PR https://github.com/mozilla/kitsune/pull/6364

[emilghittasv]

I can confirm the following in stage.

• The Question Details section is enabled if the question was not moderated via the /moderate tool.
• The Question Details is successfully removed if the question was moderated via the /moderate tool.

Moving this ticket inside the release column.