Started playing with prosemirror

- Got base setup together with WYSIWYG/Markdown switching, where HTML is
  the base content format.
- Added some testing routes/views for initial development.
- Added some dev npm tasks to support editor-specific actions.

routes/web.php

@@ -38,6 +38,8 @@ use Illuminate\View\Middleware\ShareErrorsFromSession;
 Route::get('/status', [StatusController::class, 'show']);
 Route::get('/robots.txt', [HomeController::class, 'robots']);
 
+Route::view('/editor-test', 'editor-test');
+
 // Authenticated routes...
 Route::middleware('auth')->group(function () {