add filament-simple-theme plugin

Author: fadymondy

content/plugins/3x1io-tomato-simple-theme.md

@@ -0,0 +1,14 @@
+---
+name: Simple Theme
+slug: 3x1io-tomato-simple-theme
+author_slug: 3x1io
+categories: [developer-tool]
+description: A simple theme for FilamentPHP
+discord_url: 
+docs_url: https://raw.githubusercontent.com/tomatophp/filament-simple-theme/master/README.md
+github_repository: tomatophp/filament-simple-theme
+has_dark_theme: true
+has_translations: true
+versions: [3]
+publish_date: 2024-06-14
+---