Implemented leaving players in the player selection and filtering those who are in the group

lib/presentation/views/main_menu/create_game/create_game_view.dart

@@ -196,7 +196,8 @@ class _CreateGameViewState extends State<CreateGameView> {
             Expanded(
               child: PlayerSelection(
                 key: ValueKey(selectedGroup?.id ?? 'no_group'),
-                initialPlayers: selectedGroup == null
+                initialSelectedPlayers: selectedPlayers ?? [],
+                availablePlayers: selectedGroup == null
                     ? playerList
                     : playerList
                           .where(

lib/presentation/widgets/player_selection.dart

@@ -11,12 +11,14 @@ import 'package:provider/provider.dart';
 
 class PlayerSelection extends StatefulWidget {
   final Function(List<Player> value) onChanged;
-  final List<Player> initialPlayers;
+  final List<Player> availablePlayers;
+  final List<Player>? initialSelectedPlayers;
 
   const PlayerSelection({
     super.key,
     required this.onChanged,
-    this.initialPlayers = const [],
+    this.availablePlayers = const [],
+    this.initialSelectedPlayers,
   });
 
   @override
@@ -51,10 +53,19 @@ class _PlayerSelectionState extends State<PlayerSelection> {
     suggestedPlayers = skeletonData;
     _allPlayersFuture.then((loadedPlayers) {
       setState(() {
-        if (widget.initialPlayers.isNotEmpty) {
-          allPlayers = [...widget.initialPlayers];
-          suggestedPlayers = [...widget.initialPlayers];
+        // If a list of available players is provided, use that list.
+        if (widget.availablePlayers.isNotEmpty) {
+          allPlayers = [...widget.availablePlayers];
+          suggestedPlayers = [...widget.availablePlayers];
+
+          if (widget.initialSelectedPlayers != null) {
+            // Ensures that only players available for selection are pre-selected.
+            selectedPlayers = widget.initialSelectedPlayers!
+                .where((p) => widget.availablePlayers.contains(p))
+                .toList();
+          }
         } else {
+          // Otherwise, use the loaded players from the database.
           loadedPlayers.sort((a, b) => a.name.compareTo(b.name));
           allPlayers = [...loadedPlayers];
           suggestedPlayers = [...loadedPlayers];