Revert "Merge branch 'feature/193-statisticsview-rework' into development"

This reverts commit 24f49e17b9, reversing
changes made to dba6c218d6.

# Conflicts:
#	pubspec.yaml

test/db_tests/aggregates/match_test.dart

@@ -56,7 +56,7 @@ void main() {
         name: 'Test Game',
         ruleset: Ruleset.singleWinner,
         description: 'A test game',
-        color: AppColor.blue,
+        color: GameColor.blue,
         icon: '',
       );
       testMatch1 = Match(
@@ -260,34 +260,6 @@ void main() {
         expect(match.group!.id, testGroup1.id);
       });
 
-      test('getMatchesByPlayer() works correctly', () async {
-        await database.matchDao.addMatchesAsList(
-          matches: [testMatch1, testMatch2],
-        );
-
-        final matches = await database.matchDao.getMatchesByPlayer(
-          playerId: testPlayer1.id,
-        );
-
-        expect(matches, hasLength(1));
-        expect(matches.first.id, testMatch2.id);
-        expect(
-          matches.first.players.any((p) => p.id == testPlayer1.id),
-          isTrue,
-        );
-      });
-
-      test(
-        'getMatchesByPlayer() returns empty list for non-existent player',
-        () async {
-          final matches = await database.matchDao.getMatchesByPlayer(
-            playerId: 'non-existing-player-id',
-          );
-
-          expect(matches, isEmpty);
-        },
-      );
-
       test('getMatchCount() works correctly', () async {
         var count = await database.matchDao.getMatchCount();
         expect(count, 0);