feat: update imports and dependencies for improved functionality

Author: nicosammito

app/[...slug]/layout.tsx

@@ -1,5 +1,5 @@
 import '../global.css';
-import {RootProvider} from 'fumadocs-ui/provider';
+import {RootProvider} from 'fumadocs-ui/provider/next';
 import {Inter} from 'next/font/google';
 import type {ReactNode} from 'react';
 import {source} from "@/lib/source";

lib/source.ts

@@ -1,9 +1,17 @@
-import {docs} from '@/.source';
+import {docs} from '@/.source/server';
 import {loader} from 'fumadocs-core/source';
+import * as tablerIcons from '@tabler/icons-react';
+import { createElement } from 'react';
 
 // See https://fumadocs.vercel.app/docs/headless/source-api for more info
 export const source = loader({
     // it assigns a URL to your pages
     baseUrl: '/',
     source: docs.toFumadocsSource(),
+    icon(icon) {
+        const tablerName = `${icon}`;
+        if (tablerName in tablerIcons) {
+            return createElement(tablerIcons[tablerName as keyof typeof tablerIcons] as any);
+        }
+    }
 });