Replace master branch with local files

frontend/src/app.d.ts

@@ -0,0 +1,23 @@
+// See https://kit.svelte.dev/docs/types#app
+// for information about these interfaces
+declare global {
+    namespace App {
+        // interface Error {}
+        interface Locals {
+            user?: {
+                id: number;
+                username: string;
+            };
+        }
+        // interface PageData {}
+        // interface PageState {}
+        // interface Platform {}
+    }
+    
+    interface Window {
+        OvenPlayer: any;
+        Hls: any;
+    }
+}
+
+export {};