Increase clientIDAddrMapCapacity to 98304.

Recent increases in usage have exhausted the capacity of the map.
#40173

server/lib/http.go

@@ -29,7 +29,7 @@ const clientMapTimeout = 1 * time.Minute
 // How big to make the map of ClientIDs to IP addresses. The map is used in
 // turbotunnelMode to store a reasonable IP address for a client session that
 // may outlive any single WebSocket connection.
-const clientIDAddrMapCapacity = 10240
+const clientIDAddrMapCapacity = 98304
 
 // How long to wait for ListenAndServe or ListenAndServeTLS to return an error
 // before deciding that it's not going to return.