chore: prepare release 1.22.0

[sable-actions]

Preview the next release on dev.sable.moe

Important

Merging this PR will create a new release.

Features

• Show the gif and sticker composer buttons by default, keeping only emoji while typing on mobile. by @eleboucher in fix: tauri media loading, sent-message drafts and composer buttons #1862

Fixes

• Fix the forum room "Event Timeline" developer entry bouncing straight back to the forum view. by @eleboucher in fix(forum): keep the event timeline open for forum rooms #1857
• Fix forum rooms opening in the normal chat view and improve forum post and thread navigation. by @7w1 in fix forums not opening in forum view & formatting fixes #1839
• Fix the mobile keyboard staying open over the room list after swiping out of a room. by @eleboucher in fix: tauri media loading, sent-message drafts and composer buttons #1862
• Fix a sent message coming back in the composer, and stop undo restoring cleared content. by @eleboucher in fix: tauri media loading, sent-message drafts and composer buttons #1862
• Fix room and user avatars disappearing on desktop after an access-token rotation. by @eleboucher in fix: re-resolve loopback media after token rotation #1864
• Fix avatars, images and videos disappearing or reloading on desktop and mobile. by @eleboucher in fix: tauri media loading, sent-message drafts and composer buttons #1862