fix: added typecheck workflow (#231)

.github/workflows/checks.yml

@@ -49,6 +49,22 @@ jobs:
 
       - name: Build code
         run: cd app && npm run build
+  typecheck:
+    name: Typecheck
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      security-events: write
+      actions: read # only required for a private repository by github/codeql-action/upload-sarif to get the Action run status
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Environnement
+        run: cd app && npm install
+
+      - name: Build code
+        run: cd app && npm run typecheck
   generation:
     name: Ressources generation (wordlist, IPA list)
     runs-on: ubuntu-latest