feat: FRO-28 Integrate Frontend Build as a seperate image (#2)

Reviewed-on: #2
Co-authored-by: Janis <janis.e.20@gmx.de>
Co-committed-by: Janis <janis.e.20@gmx.de>

env.d.ts

@@ -1 +1,7 @@
 /// <reference types="vite/client" />
+
+declare global {
+  interface Window { __RUNTIME_CONFIG__?: { API_URL?: string } }
+}
+
+export {};