Add detailed report pages for media outlets with document and slide viewers

Implement a new report page in the UI to display comprehensive content for media outlets, including embedded HTML documents and interactive PPT slide viewers.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 0fb68265-c270-4198-9584-3d9be9bddb41
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/3df548ff-50ae-432f-9be4-25d34eccc983/0fb68265-c270-4198-9584-3d9be9bddb41/XHpsebf

client/src/components/MainContent.tsx

@@ -99,7 +99,7 @@ export default function MainContent() {
 
   return (
     <div className="flex flex-col min-h-screen bg-gray-50">
-      <div className="flex-1 max-w-7xl mx-auto px-4 py-4 pb-16 w-full">
+      <div className="flex-1 max-w-7xl mx-auto px-4 py-4 pb-24 w-full">
         {isLoading ? (
           <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
             {categories.map((category) => (