Migrate storefront v2 to v3

Riot Games updated their endpoint for the store, causing the app to not load any offers and items.
This is resolved with the last commit

Install the new apk from the assets below.

App release 2_0_6v16

Fixed Bundle Issues addressed in #10
Rewrote region select and login due to region issues addressed in #11
Added back Kingdom Credit cost in Accessories like mentioned in #12

Added small notifications f.e. Google Play and Updates

Update bugfix showing blank screen

Fixed the bug causing to show a blank screen

beta

valstore

api fixing