chore(extensions): add eslint to workspace

.vscode/extensions.json

@@ -4,6 +4,7 @@
     "streetsidesoftware.code-spell-checker-french",
     "angular.ng-template",
     "devescalus.svg-sprites-viewer",
-    "esbenp.prettier-vscode"
+    "esbenp.prettier-vscode",
+    "dbaeumer.vscode-eslint"
   ]
 }