Merge pull request ppy#12537 from nanaya/no-collection

 Remove custom collection for models

Merge pull request ppy#12520 from nanaya/room-collection

Use custom collection to handle room participant preload

Merge pull request ppy#12501 from ppy/update-mod-definitions

Update mod definitions

Merge pull request ppy#12511 from bdach/remove-outdated-disclaimer

Remove outdated disclaimer about lazer not supporting TOTP

Merge pull request ppy#12504 from smoogipoo/qp-pool-lobby-size

Add `lobby_size` column to `matchmaking_pools`

Merge pull request ppy#12491 from nanaya/score-last-processed-2

Use different source for checking score processing status

Merge pull request ppy#12492 from notbakaneko/fix-bbcodefromdb-toedit…

…or-deprecation

Fix BBCodeFromDB deprecation warning

Merge pull request ppy#12450 from Hiviexd/group-history-button

Add history button to group pages

Merge pull request ppy#12454 from nanaya/chat-limit

Check post-filter message length

Merge pull request ppy#12460 from smoogipoo/qp-playlist-rating

Add 'id', 'rating' and 'selection_count' to 'matchmaking_pool_beatmaps`