Unite the UIs

[2byrds]

Unite the roots-react-native-experiemental and RootsWallet UIs into the roots-react-native repository so that projects can fork it and add native/backend logic.

[2byrds]

@AlexAndrei98 will work on the bottom slider next.

[AlexAndrei98]

roots-id/roots-react-native-experimental#3

[2byrds]

buttons from slider shouldn't be greyed out:

[2byrds]

Error from settings screen:

[2byrds]

android loads (after it fails and i reload), but not getting material design icons

[2byrds]

@AlexAndrei98 will disable pin feature.
@2byrds will find fixes for button colors.