Remove VITE_SERVER_ENDPOINT dependency (#428)

* Move backend api to its own instance

* Remove external fetch hook

* Added endpoint for album

* Added endpoint for admin page

* Make request directly to immich-server

* Refactor unsued code

web/src/routes/data/user/get-my-user-info.ts

@@ -0,0 +1,15 @@
+import { serverApi, UserResponseDto } from '@api';
+import type { RequestHandlerOutput } from '@sveltejs/kit';
+
+export const GET = async (): Promise<RequestHandlerOutput<UserResponseDto>> => {
+	try {
+		const { data } = await serverApi.userApi.getMyUserInfo();
+		return {
+			body: data
+		};
+	} catch {
+		return {
+			status: 500
+		};
+	}
+};