Add a live streaming link to all page headers and navigation

Integrate a "LIVE" link with pulsing animation into the header navigation of multiple pages (FolxStadlPage, GeschichteLiedPage, GipfelstammtischPage, VideoPage) and the LivePage itself. This includes updating the LivePage's header to include a search bar and mobile menu toggle.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 45a1dcfc-f8a2-475a-a6b9-96fbb841dc27
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/60d372ff-2c10-46c7-b01b-10c3435136b0/45a1dcfc-f8a2-475a-a6b9-96fbb841dc27/H8zer6l

.replit

@@ -15,10 +15,6 @@ run = ["npm", "run", "start"]
 localPort = 5000
 externalPort = 80
 
-[[ports]]
-localPort = 33305
-externalPort = 3002
-
 [[ports]]
 localPort = 34033
 externalPort = 3001
@@ -27,6 +23,10 @@ externalPort = 3001
 localPort = 35637
 externalPort = 3000
 
+[[ports]]
+localPort = 46809
+externalPort = 3002
+
 [env]
 PORT = "5000"