Fixing lint and adding ci pipeline

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: PR checks
+on:
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  checks:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "18"
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Run build
+        run: npm run build
+
+      - name: Run lint
+        run: npm run lint

src/ts/index.ts

@@ -2,6 +2,7 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the Source EULA.See License.txt in the project root for license information.
  * --------------------------------------------------------------------------------------------*/
+
 /// <reference path="./mxtypings/index.d.ts" />
 import mx from 'mxgraph';
 export * from 'mxgraph';