0.21.7.1117 beta

Improved notifications styles for certain message types. Notifications shouldn't get stuck when chatting on another device. More fixes.

Changes

- Optimizing Database screen after updating the app (you may see it when you update from the current stable version)
- Improved notifications: all kinds of service messages, highscore messages,
- Supported remaining few unsupported push contents
- Core changes to image caching/displaying

Fixed Issues

- Crash while trying to open secret chat profiles
- Gray placeholders instead of profile pics in the app menu accounts list
- Gray placeholders instead of profile pics in the chats list until you scroll the list
- Out-of-screen bubble time position for 1px stickers on the sender side (they deserved it though)
- "Remove for X" is displayed for Bots & Saved Messages
- empty title on storage usage screen for deleted accounts
- account name instead of "Saved Messages" is displayed on storage usage screen
- Problems with images after clearing storage on Storage Usage screen
- Some crashes arrived from Google Play

Updated TDLib

- Supported last server changes to push notifications
- Notifications should no longer get stuck, when app is in the background, but you chat from the other device
- Fixed crashes and bugs

Only few tricky things remaining to go stable. Still not RC, because could have broken smth with core changes to image displaying.