0.21.8.1161 beta

- Big emoji when there are only few of them in a message and they are the only content (+ an option to disable that behavior)
- Changed medium font used while "Use system fonts" enabled
- Fixed: Can't send one-character messages if preceded by the space
- Fixed: In-app text file viewer has broken
- Fixed: Improperly positioned bullets/numbers in IV lists
- Better paddings for options menu hint
- Improved internal error reporting for TDLib issues

Also fixed these two emoji for blob emoji set: 👀👐. To get a fix, switch to default emoji set, then back to blob.