Bug fixes + maintenance:
* Upgrade Android dependencies and build toolchain to SDK 33 (no ticket)
* Android 13: Ask for permission to post notifications (#508)
* Remove timestamp when copying message text (#471, thanks to @wunter8)
* Fix auto-delete if some icons do not exist anymore (#506)

Additional translations:
* Korean (thanks to @YJSofta0f97461d82447ac)
* Portuguese (thanks to @victormagalhaess)