Providerupdate - Nextcloud 24

This is the long awaited Providerupdate!

What did we do this time?

• More Provider - Wallhaven and Wikimedia are now available!
• Advanced Theming - Tinting and Blurring now let you customize your cloud even more!
• Added Czech Translations - Thanks @p-bo !

! This update was revoked because it was incompatible with php7.3 and below. I have released 2.0.1 to fix this issue.