Added null safety

lib/l10n/generated/app_localizations.dart

@@ -206,6 +206,12 @@ abstract class AppLocalizations {
   /// **'Lizenzdetails'**
   String get license_details;
 
+  /// No description provided for @no_license_text.
+  ///
+  /// In de, this message translates to:
+  /// **'Keine Lizenz verfügbar'**
+  String get no_license_text;
+
   /// No description provided for @imprint.
   ///
   /// In de, this message translates to:

lib/l10n/generated/app_localizations_de.dart

@@ -62,6 +62,9 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get license_details => 'Lizenzdetails';
 
+  @override
+  String get no_license_text => 'Keine Lizenz verfügbar';
+
   @override
   String get imprint => 'Impressum';
 

lib/l10n/generated/app_localizations_en.dart

@@ -62,6 +62,9 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get license_details => 'License Details';
 
+  @override
+  String get no_license_text => 'No license available';
+
   @override
   String get imprint => 'Imprint';