guidelines: filament/3: remove duplicate line

Author: ashleyhindle

.ai/filament/3/core.blade.php

@@ -4,10 +4,9 @@
 - Resources are located in `app/Filament/Resources/` directory.
 - Resource pages (List, Create, Edit) are auto-generated within the resource structure.
 - Forms use the `Forms\Components` namespace for form fields.
-- New RichEditor component available (`Filament\Forms\Components\RichEditor`) instead of Markdown Editor.
+- New RichEditor component available (`Filament\Forms\Components\RichEditor`).
 - Tables use the `Tables\Columns` namespace for table columns.
-- Admin panel accessible at `/admin` by default.
+- Admin panel is accessible at `/admin` by default.
 - Form and table schemas now use fluent method chaining.
 - Added `php artisan filament:optimize` command for production optimization.
 - Requires implementing `FilamentUser` contract for production access control.
-- New RichEditor component (Filament\Forms\Components\RichEditor) is available,