web: add firebase push token registration and sync

web/src/vite-env.d.ts

@@ -1 +1,17 @@
 /// <reference types="vite/client" />
+
+interface ImportMetaEnv {
+  readonly VITE_API_BASE_URL?: string;
+  readonly VITE_WS_URL?: string;
+  readonly VITE_FIREBASE_API_KEY?: string;
+  readonly VITE_FIREBASE_AUTH_DOMAIN?: string;
+  readonly VITE_FIREBASE_PROJECT_ID?: string;
+  readonly VITE_FIREBASE_STORAGE_BUCKET?: string;
+  readonly VITE_FIREBASE_MESSAGING_SENDER_ID?: string;
+  readonly VITE_FIREBASE_APP_ID?: string;
+  readonly VITE_FIREBASE_VAPID_KEY?: string;
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv;
+}