refactor: improve code readability by adjusting formatting and synchronization in GameEngine and tests

modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala

@@ -194,8 +194,7 @@ class GameEngine(
       currentContext = currentContext.withResult(Some(GameResult.Draw(DrawReason.ThreefoldRepetition)))
       invoker.clear()
       notifyObservers(DrawEvent(currentContext, DrawReason.ThreefoldRepetition))
-    else
-      notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.DrawCannotBeClaimed))
+    else notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.DrawCannotBeClaimed))
   }
 
   /** Load a game using the provided importer. If the imported context has moves, they are replayed through the command

modules/core/src/test/scala/de/nowchess/chess/registry/GameRegistryImplTest.scala

@@ -4,7 +4,7 @@ import de.nowchess.api.player.{PlayerId, PlayerInfo}
 import de.nowchess.chess.engine.GameEngine
 import io.quarkus.test.junit.QuarkusTest
 import jakarta.inject.Inject
-import org.junit.jupiter.api.{Test, DisplayName}
+import org.junit.jupiter.api.{DisplayName, Test}
 import org.junit.jupiter.api.Assertions.*
 
 import scala.compiletime.uninitialized

modules/core/src/test/scala/de/nowchess/chess/resource/GameResourceIntegrationTest.scala

@@ -4,7 +4,7 @@ import de.nowchess.api.dto.*
 import de.nowchess.chess.exception.BadRequestException
 import io.quarkus.test.junit.QuarkusTest
 import jakarta.inject.Inject
-import org.junit.jupiter.api.{Test, DisplayName}
+import org.junit.jupiter.api.{DisplayName, Test}
 import org.junit.jupiter.api.Assertions.*
 
 import scala.compiletime.uninitialized