fix(homepage): correct minecraft widget protocol

Widget used udp:// (Bedrock/RakNet ping) against port 25565, the Java
Edition default, so the server-list ping protocol never matched and
the widget showed as unreachable.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HCHg6BFAjZGUZer7RW5faD

modules/environments/homepage/manual-widgets.nix

@@ -3,5 +3,5 @@
   { resources = { cpu = true; memory = true; disk = "/"; }; }
   { datetime = { text_size = "xl"; format = { timeStyle = "short"; }; }; }
   { search = {provider = "google";  focus = true; target = "_blank"; }; }
-  { minecraft = { url = "udp://rechberg.online:25565"; }; }
+  { minecraft = { url = "rechberg.online:25565"; }; }
 ]