feat: XEP-0317 (Hats)

nicocorequested to merge
hats into master

Depends on https://dev.gajim.org/nicoco/python-nbxmpp/-/commit/86d258ed5f66e30e2ce6fca2715220a74b3786d0 to compare hats.

Screenshot (a bit outdated, hats are left aligned now)

Screenshot_20240525_152838

Edited by nicoco

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