fix github actions pipeline

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ on:
     branches: [ "main" ]
 
 jobs:
-  ci:
+  ci-fe:
     runs-on: ubuntu-latest
 
     steps:
@@ -18,6 +18,8 @@ jobs:
       with:
         node-version: 18.x
     
+    - run: |
+        cd ./frontend
     - name: install deps
       run: |
         yarn install --frozen-lockfiles
@@ -39,5 +41,6 @@ jobs:
 
     - name: docker build
       run: |
+        cd ./frontend
         docker build .