ci: Add lint workflow

.github/workflows/lint.yml

@@ -0,0 +1,33 @@
+name: Lint
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  setup:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 18
+          cache: 'npm'
+
+      - name: Cache Node.js modules
+        uses: actions/cache@v3
+        with:
+          path: client/node_modules
+          key: ${{ runner.os }}-node-${{ hashFiles('client/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run linter
+        run: npm run lint