Add view for all notes

[Insax]

Idea:

To Simplify usage for Admins, we add a new view for all notes

Implementation:

Add a new route notes/all, protect Route with middleware 'role: Admin'.
Edit app/Http/Controllers/NotesController.php and Fetch all notes with pagination (20 entrys, sorted by title alphabetically)
Add new link in navbar dropdown (right side), check Auth::user()->hasRole('Admin');
We only print overview data, so if user wants to see the full content, he has to visit the /notes/show/id route

Frontend:

The Format should be similar to the appended tables which are added in /home route (search stuff)
Add proper formatted table / panels / tabs / whatever to /notes/all page maybe assign frontend developer to that task.