Remove unused CSS imports and update Tailwind sources

Deleted unnecessary CSS imports from layout.tsx, including AG Grid and Object UI styles. Added fumadocs-ui dist JS files to Tailwind source scanning in global.css for improved style coverage.

Author: hotlong

apps/site/app/global.css

@@ -4,6 +4,7 @@
 
 
 /* Scan sources for Tailwind clcd asses */
+@source '../node_modules/fumadocs-ui/dist/**/*.js';
 @source '../../packages/components/src/**/*.{ts,tsx}';
 @source '../../packages/react/src/**/*.{ts,tsx}';
 @source '../../packages/plugin-*/src/**/*.{ts,tsx}';

apps/site/app/layout.tsx

@@ -1,12 +1,6 @@
 import { RootProvider } from 'fumadocs-ui/provider/next';
 import './global.css';
-import '@object-ui/components/style.css';
 // AG Grid styles - required for plugin-aggrid demos
-import 'ag-grid-community/styles/ag-grid.css';
-import 'ag-grid-community/styles/ag-theme-quartz.css';
-import 'ag-grid-community/styles/ag-theme-alpine.css';
-import 'ag-grid-community/styles/ag-theme-balham.css';
-import 'ag-grid-community/styles/ag-theme-material.css';
 import { Inter } from 'next/font/google';
 import { ObjectUIProvider } from '@/app/components/ObjectUIProvider';