Update branding to consistently use video.folx.tv across the platform

Adjusts various components and pages to display "video.folx.tv" instead of "FOLX.TV", with the exception of the home page header.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 946a0075-7e32-454b-b348-9e7f576d7f45
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/60d372ff-2c10-46c7-b01b-10c3435136b0/946a0075-7e32-454b-b348-9e7f576d7f45/o9BuTTJ

client/src/components/search-header.tsx

@@ -60,7 +60,7 @@ export default function SearchHeader({
               <div className="w-9 h-9 gradient-primary rounded-lg flex items-center justify-center shadow-lg">
                 <div className="w-0 h-0 border-l-[10px] border-l-white border-y-[7px] border-y-transparent ml-1"></div>
               </div>
-              <h1 className="text-2xl font-bold text-white tracking-wide">FOLX.TV</h1>
+              <h1 className="text-2xl font-bold text-white tracking-wide">video.folx.tv</h1>
             </Link>
           </div>