add error message for game deletion and implement search functionality

lib/l10n/arb/app_de.arb

@@ -34,6 +34,7 @@
   "edit_match": "Gruppe bearbeiten",
   "enter_results": "Ergebnisse eintragen",
   "error_creating_group": "Fehler beim Erstellen der Gruppe, bitte erneut versuchen",
+  "error_deleting_game": "Fehler beim Löschen der Spielvorlage, bitte erneut versuchen",
   "error_deleting_group": "Fehler beim Löschen der Gruppe, bitte erneut versuchen",
   "error_editing_group": "Fehler beim Bearbeiten der Gruppe, bitte erneut versuchen",
   "error_reading_file": "Fehler beim Lesen der Datei",

lib/l10n/arb/app_en.arb

@@ -104,6 +104,9 @@
   "@error_creating_group": {
     "description": "Error message when group creation fails"
   },
+  "@error_deleting_game": {
+    "description": "Error message when game deletion fails"
+  },
   "@error_deleting_group": {
       "description": "Error message when group deletion fails"
   },
@@ -376,6 +379,7 @@
   "edit_match": "Edit Match",
   "enter_results": "Enter Results",
   "error_creating_group": "Error while creating group, please try again",
+  "error_deleting_game": "Error while deleting game, please try again",
   "error_deleting_group": "Error while deleting group, please try again",
   "error_editing_group": "Error while editing group, please try again",
   "error_reading_file": "Error reading file",

lib/l10n/generated/app_localizations.dart

@@ -296,6 +296,12 @@ abstract class AppLocalizations {
   /// **'Error while creating group, please try again'**
   String get error_creating_group;
 
+  /// Error message when game deletion fails
+  ///
+  /// In en, this message translates to:
+  /// **'Error while deleting game, please try again'**
+  String get error_deleting_game;
+
   /// Error message when group deletion fails
   ///
   /// In en, this message translates to:

lib/l10n/generated/app_localizations_de.dart

@@ -112,6 +112,10 @@ class AppLocalizationsDe extends AppLocalizations {
   String get error_creating_group =>
       'Fehler beim Erstellen der Gruppe, bitte erneut versuchen';
 
+  @override
+  String get error_deleting_game =>
+      'Fehler beim Löschen der Spielvorlage, bitte erneut versuchen';
+
   @override
   String get error_deleting_group =>
       'Fehler beim Löschen der Gruppe, bitte erneut versuchen';

lib/l10n/generated/app_localizations_en.dart

@@ -112,6 +112,10 @@ class AppLocalizationsEn extends AppLocalizations {
   String get error_creating_group =>
       'Error while creating group, please try again';
 
+  @override
+  String get error_deleting_game =>
+      'Error while deleting game, please try again';
+
   @override
   String get error_deleting_group =>
       'Error while deleting group, please try again';