Added Backrooms gamemode

.idea/misc.xml

@@ -7,7 +7,7 @@
     <pattern value="eu.mhsl.minenet.minigames.util.InventoryItemAlignment.ItemOffset" method="getX" />
   </component>
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="corretto-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>