Add github action for linter (#6)

.github/workflows/pullrequest.yml

@@ -0,0 +1,19 @@
+name: Pull Request Checks
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+    branches:
+      - main
+jobs:
+  lint:
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    steps:
+        - uses: actions/checkout@v4
+        - uses: actions/setup-node@v4
+          with:
+            node-version: '22.x'
+            cache: 'npm'
+        - run: npm install
+
+        - run: npm run lint