Change App store links

https://git.fairkom.net/chat/fairchat.ReactNative/blob/develop/app/constants/links.js

replace with fairchat store links

Replace with

https://play.google.com/store/apps/details?id=com.osalliance.rocketchatMobile
https://apps.apple.com/at/app/fairchat/id1301616129
https://git.fairkom.net/chat/fairchat.ReactNative/blob/fairchat-master/LICENSE

added Doing label

changed milestone to %V 2.0

Done in iOS branch (to be merged into developFairchat)

closed