Improve ad spacing and placement on specific pages

Adjusted margin for InlineAd component in `InlineAd.tsx` and removed duplicate InlineAd components from `FolxStadlPage.tsx`, `GeschichteLiedPage.tsx`, and `GipfelstammtischPage.tsx`.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 401e2ec0-e00d-4f10-9d0e-60f3d479f9a5
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/60d372ff-2c10-46c7-b01b-10c3435136b0/401e2ec0-e00d-4f10-9d0e-60f3d479f9a5/diFMF6E

client/src/pages/FolxStadlPage.tsx

@@ -330,11 +330,6 @@ export default function FolxStadlPage() {
 
       </div>
 
-      {/* Final inline ad before footer */}
-      <div className="hidden lg:block container mt-16">
-        <InlineAd />
-      </div>
-
       {/* Footer */}
       <footer className="bg-bunny-dark/90 border-t border-white/10 py-8 mt-12">
         <div className="container">