🔧 Add [U2F] APP_ID and TRUSTED_FACETS to app.ini 🔧

Owner reports adding this section fixed passkey sign-in on their
server. Both values follow the public protocol and host.

- rootfs/tmp/etc/gitea/app.ini: add [U2F] with APP_ID and TRUSTED_FACETS using the server protocol and name placeholders

rootfs/tmp/etc/gitea/app.ini

@@ -35,6 +35,10 @@ SSH_DOMAIN                                                 = REPLACE_SERVER_NAME
 USE_PROXY_PROTOCOL                                         = false
 REDIRECT_OTHER_PORT                                        = false
 ; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+[U2F]
+APP_ID                                                     = REPLACE_SERVER_PROTO://REPLACE_SERVER_NAME
+TRUSTED_FACETS                                             = REPLACE_SERVER_PROTO://REPLACE_SERVER_NAME
+; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 [lfs]
 STORAGE_TYPE                                               = local
 PATH                                                       = REPLACE_DATA_DIR/lfs