feat(frontend): added frontend

- Router: client side route handling with client side rendering
- Toast: rought Toast handling for better UX and messaging
- Auth: single point of truth for the Logged in user

This commit doesnt not include the openapi generated code

frontend/src/pages/about/about.ts

@@ -0,0 +1,12 @@
+import { addRoute, setTitle } from "@app/routing";
+import page from './about.html?raw'
+
+
+async function route(_url: string, _args: { [k: string]: string }): Promise<string> {
+	setTitle('About us')
+	return page;
+}
+
+
+
+addRoute('/', route)