Run npm lint in CI (#2197)

.github/workflows/build.yml

@@ -104,10 +104,13 @@ jobs:
 
       - name: NPM setup & test
         run: |
-          npm install
+          npm ci
           npm run dist
           npm run test
 
+      - name: Run linter
+        run: npm run lint
+
       - name: Gulp
         run: gulp ci
 

package.json

@@ -21,7 +21,7 @@
     "dist:safari:mas": "npm run build:prod && gulp dist:safari:mas",
     "dist:safari:masdev": "npm run build:prod && gulp dist:safari:masdev",
     "dist:safari:dmg": "npm run build:prod && gulp dist:safari:dmg",
-    "lint": "tslint src/**/*.ts || true",
+    "lint": "tslint src/**/*.ts",
     "lint:fix": "tslint src/**/*.ts --fix",
     "test": "karma start --single-run",
     "test:watch": "karma start"