chore: improve ambiguous npm script for linting (#14139)

Author: devversion

package.json

@@ -15,8 +15,7 @@
     "build": "gulp :publish:build-releases",
     "demo-app": "gulp serve:devapp",
     "test": "gulp test",
-    "tslint": "gulp lint",
-    "stylelint": "gulp lint",
+    "lint": "gulp lint",
     "e2e": "gulp e2e",
     "deploy": "gulp deploy:devapp",
     "webdriver-manager": "webdriver-manager",