feat(controllers): add new TODO in model.controller

- The code update adds a new `TODO` comment in the `model.controller.ts` file.
- The new `TODO` is about getting a model with available vehicles.

Issue: #28
Signed-off-by: Mathis <yidhra@tuta.io>

src/controllers/model.controller.ts

@@ -103,6 +103,7 @@ async function deleteModel(req: Request, res: Response): Promise<Response> {
 
 //TODO get all vehicles of an model by slug
 
+//TODO get model with vehicle available.
 
 const ModelController = {
 	create: createModel,