Make dialog strings translateable

[connyduck]

Currently the text displayed to users in dialogs is hardcoded. It would be cool if they were Android string resources so client apps can override them and/or provide additional translations. Ideally the connector already comes with translations in common languages.

[p1gp1g]

Dialog strings can be overridden with the optional param registrationDialogContent.

Check the documentation to use it (java or kotlin) : https://unifiedpush.org/developers/android/

Params are here : https://github.com/UnifiedPush/android-connector/blob/main/connector/src/main/java/org/unifiedpush/android/connector/RegistrationDialogContent.kt

I'm closing this issue since the text can be overridden and translated :)

[p1gp1g]

Note that suggestions to improve this are welcome :)