RELEASE. Fix problem with lintOptions(NullSafeMutableLiveData)

[mnewlive]

1. Remove from build.gradle abortOnError false
2. Pay attention to the problem areas in the code and solve them:

• sca-authenticator-android/app/src/main/kotlin/com/saltedge/authenticator/features/authorizations/details/AuthorizationDetailsViewModel.kt:131: Error: Expected non-nullable value [NullSafeMutableLiveData from jetified-lifecycle-livedata-core-ktx-2.3.1]
  else authorizationModel.postValue(data)
  ~~~~

• sca-authenticator-android/app/src/main/kotlin/com/saltedge/authenticator/features/launcher/LauncherViewModel.kt:61: Error: Cannot set non-nullable LiveData value to null [NullSafeMutableLiveData from jetified-lifecycle-livedata-core-ktx-2.3.1]

            onInitializationSuccess.value = null
                                            ~~~~
  

• /sca-authenticator-android/app/src/main/kotlin/com/saltedge/authenticator/features/launcher/LauncherViewModel.kt:66: Error: Cannot set non-nullable LiveData value to null [NullSafeMutableLiveData from jetified-lifecycle-livedata-core-ktx-2.3.1]

            onDbInitializationFail.value = null
                                           ~~~~
  

  Explanation for issues of type "NullSafeMutableLiveData":
  This check ensures that LiveData values are not null when explicitly
  declared as non-nullable.

  Kotlin interoperability does not support enforcing explicit
  null-safety when using generic Java type parameters. Since
  LiveData is a Java class its value can always be null even
  when its type is explicitly declared as non-nullable. This can lead
  to runtime exceptions from reading a null LiveData value that is
  assumed to be non-nullable.

  Vendor: Android Open Source Project (jetified-lifecycle-livedata-core-ktx-2.3.1)
  Identifier: jetified-lifecycle-livedata-core-ktx-2.3.1