Social logins crash when not configured

[nikolay-vasilev-prime]

EDIT: The crash was due to missing keys in .plist files and since we don't want to add them in the cli project, they were addressed only in the liquidtools showcase project and aren't part of the cli.

As a user I would like when social logins aren't configured to see error message instead of a crash.

ACs:

• Handle facebook login error state.
• Handle Google login error state.
• Show bottom sheet error message for facebook login.
• Show bottom sheet error message for Google login.

[nikolay-vasilev-prime]

The app crashes with an error that cannot be handled on iOS, if the info.plist keys are missing.
The solution is to add the required keys and leave the values for the developer to set them.

The crash may be introduced again when facebook or google auth packages are updated and the new implementation requires different keys.

[GoranPrime]

Tested & working as intended (shows appropriate errors, no crashes)