Add exclusive photos from recordings to the gallery and improve site metadata

Integrate AdSense ads into the photo gallery, introduce SSR meta tags for the gallery page, and improve layout stability by reserving space for ads and dynamic content.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 23852c00-4779-460a-9e0c-d09fee4b6c92
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 81f3d8bc-2328-4374-a06e-57257dbb713b
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/f209e72a-0939-48fa-84fc-57854de71967/23852c00-4779-460a-9e0c-d09fee4b6c92/OPD8Ro3
Replit-Helium-Checkpoint-Created: true

replit.md

@@ -7,6 +7,7 @@ The official website for Folx Music Television (folx.tv). Dark-themed bento grid
 - Primary keyword: "Volksmusik" — used across all page titles, meta descriptions, OG tags, and structured data
 - Dynamic canonical URLs via `usePageMeta` hook (updates `<link rel="canonical">` per page)
 - SSR article pages: server-side meta tags (OG, Twitter, description, keywords, canonical) in both `server/vite.ts` (dev) and `server/static.ts` (prod)
+- SSR gallery page (`/gallery`): OG meta, Twitter card, description, canonical — emphasizes exclusive backstage/concert photos from recordings
 - `stripExistingMeta()` removes duplicate meta/canonical from base HTML before injecting article-specific ones
 - JSON-LD structured data: WebSite (home) with SearchAction, NewsArticle + BreadcrumbList (articles)
 - Sitemap at `/sitemap.xml` — includes all static pages, categories, horoscope signs, and articles