minor changes:
-added support for android API 31 and androidX layout components(if some new bugs appeared with this change - please let me know, I don't have much devices to test now)
-fixed bug when bot hanged on one place
-added shop shift-to-top button in hope to support some devices who have troubles with shop don't fit the screen
-device "BACK" button now can be used to quit the shop
-increased shop "back" button size to support some devices not displaying it properly
Development and support twitter @medievalwarri0r
