Add visual component for assigning user tags to beatmaps

[bdach]

2025-03-04.13-10-41.mp4

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• Soft-depends on Include custom beatmap tags set by own user in response osu-web#11951

Visual part for #31913. Opening separately for appropriate visual UI adjustments.

Also mostly ready to be hooked up to the results screen, pending merge of ppy/osu-web#11951 - but not hooked up quite yet.

[peppy]

Hmm, I think we're going to need a search box for tags (probably autofocused) selection, I guess that will be a follow-up effort?

[bdach]

I'd honestly rather than do it here probably. It shouldn't be a huge undertaking.

Unless you're uncomfortable with the diff size here I suppose.

[peppy]

I guess the only weird thing I've seen is that a tag returning to 0 count doesn't disappear and instead stays visible with a 0. Maybe fine, not sure.

[bdach]

Applied in 3d4dd85

[peppy]

I'd honestly rather than do it here probably. It shouldn't be a huge undertaking.

Sounds fine. Diff so far is palatable so feel free to go ahead.

[bdach]

Search box added in 00127b3

[peppy]

I've made some changes. Not hugely keen on the number of subclasses, but adjusting the naming helped things become acceptable to my eye.

[bdach]

Not hugely keen on the number of subclasses

That's mostly because I see a lot of these as single-use but point taken 👍 No objections to the changes.