Merge branch 'main' into translations-system

source/funkin/backend/assets/AssetsLibraryList.hx

@@ -83,8 +83,7 @@ class AssetsLibraryList extends AssetLibrary {
 			if (l is IModsAssetLibrary) {
 				var lib = cast(l, IModsAssetLibrary);
 				for(e in lib.getFolders(folder))
-					if(!content.contains(e))
-						content.push(e);
+					content.pushOnce(e);
 			}
 			#end
 		}

source/funkin/backend/assets/ZipFolderLibrary.hx

@@ -134,8 +134,7 @@ class ZipFolderLibrary extends AssetLibrary implements IModsAssetLibrary {
 				var fileName = k.substr(_parsedAsset.length);
 				if (fileName.contains("/")) {
 					var s = fileName.split("/")[0];
-					if (!content.contains(s))
-						content.push(s);
+					content.pushOnce(s);
 				}
 			}
 		}