Restore missing and/or obsolete Close-Vote Reasons

Question

About:

This userscript restores missing/obsolete close-vote reasons to the close-vote dialog.

This script is in response to:

1. A chat request where the poster used it in conjunction with a bug report.
2. Requests, like this one, to restore/add the customary close reasons to Teams sites -- which currently only officially support closing as a duplicate?

Features:

• Integrates with the standard close-vote dialog. But some of it is WIP, See the "Known issues", below.
• Adds back close reasons taken from a few SEDE queries like this one.
• Only Adds a reason if it is not already present.
• Works on regular sites and teams sites (but I only have 1 team to test against).
• The unofficial reasons are clearly indicated with warning iconography.

Screenshot:

Platform:

This is a userscript that runs in your browser. It requires a userscript extension like Tampermonkey or Violentmonkey.

Install button: Install from GitHub

Code:

The code is on GitHub, in the BrockA/SE-misc repository.

Post bug reports and pull requests there. ^{_{(Or below if you don't do GitHub.)}}

Known issues:

1. Not yet sanctioned by the SE team. USE SPARINGLY, lest ye be banned.
2. The "You have already voted to close this question" dialogs can't seem to get the non-standard close reason.
3. The close-vote count is not updated on a successful close-vote. Reload the page to see that for now.
4. Although it adds back the generic Off topic reason, the "off-topic because..." reasons are not supported yet -- if the site does not offer them natively. (Also, it might not be sensible to on such sites due to the way the reasons and ids vary.)
5. Close-voting by low-rep users via flagging is not well tested. Seems to work, but if it glitches, I may not support it.
6. Closing from review was not tested at all. If it glitches, I may not support it.
7. Will not support Greasemonkey 4+. Use Tampermonkey or Violentmonkey, or equivalent.