Support Forums: Add counters to moderation links

[SergeyBiryukov]

@sevlad suggested adding counters to moderation links that require an action, see an example screenshot.

For a quick access from any page, it might also be a good idea to add these links under "My Account" in admin bar, as a follow-up to [6303].

[tobifjellner]

For support forums in various locales this would really be helpful. One needs to remember to check these links every day. There may be something there once in a blue moon, so it's easy to forget.

[SergeyBiryukov]

#4181 was marked as a duplicate.

[tobifjellner]

When a corresponding queue is not empty, the link to the view can be highlighted with bold text.

[tobifjellner]

If the queries for showing the numbers would be too heavy, then it might still be useful to just mark (say with an asterisk *) that there's "something" in that queue.

(numbers are better, of course, for instance since the global forums keep a topic modlooked all the time)

[dd32]

If the queries for showing the numbers would be too heavy

They probably would be, but we can work around that by keeping a cached count and only recounting upon an action taking place (or incrementing/decrementing it when an action takes place).

I think some of the views are limited to recent topics anyway, which would make the queries much faster, although I think some caching would still be warranted.