fix: change back to login button and add to register option screen (#4847)

* fix: change back to login button and add to register option screen

* fix: change back to login button and add logic for remove and set events

Co-authored-by: Fabi <38692350+hifabienne@users.noreply.github.com>

internal/api/grpc/text/custom_text.go

@@ -345,6 +345,7 @@ func RegistrationOptionScreenTextToPb(text domain.RegistrationOptionScreenText)
 		Description:              text.Description,
 		UserNameButtonText:       text.RegisterUsernamePasswordButtonText,
 		ExternalLoginDescription: text.ExternalLoginDescription,
+		LoginButtonText:          text.LoginButtonText,
 	}
 }
 
@@ -811,6 +812,7 @@ func RegistrationOptionScreenTextPbToDomain(text *text_pb.RegistrationOptionScre
 		Description:                        text.Description,
 		RegisterUsernamePasswordButtonText: text.UserNameButtonText,
 		ExternalLoginDescription:           text.ExternalLoginDescription,
+		LoginButtonText:                    text.LoginButtonText,
 	}
 }