23 February Update

Changelog:

• Updated all inner libraries and flutter engine version

• Fixed issue with countdown timer, when you hide the app and then restore again

• Closed threads are now being auto-cleared when corresponding option is enabled

• Fixed an issue with URL parser (need some extra testing)

• Fixed an issue with favorites sort order

• Added feature to copy filename in metadata menu

• Fixed issue with quotes in /r9k/ (need to be tested)