Backend GKE Deploy, access key for backend

- Configs and automation for deploying backend to GKE
- First steps to adding an optional token check for requests to backend
- First steps frontend sending optional token to backend when configured

app-docker-compose.yaml

@@ -0,0 +1,13 @@
+services:
+  perplexica-frontend:
+    build:
+      context: .
+      dockerfile: app.dockerfile
+      args:
+        - SUPER_SECRET_KEY=${SUPER_SECRET_KEY}
+        - NEXT_PUBLIC_API_URL=http://${REMOTE_BACKEND_ADDRESS}/api
+        - NEXT_PUBLIC_WS_URL=ws://${REMOTE_BACKEND_ADDRESS}
+    expose:
+      - 3000
+    ports:
+      - 3000:3000