[BUG] Networking errors after reading chat packet

[Jameskmonger]

Describe the bug
I don't think our server reads the chat packet correctly. If you set chat to "Off" and then send a message, the chat status is set to "Hide" and packet 32 is sent immediately after the chat packet. This seems to break incoming packets.

I have used an old version of the client to rule out my recent packet changes from being the cause

To Reproduce
Steps to reproduce the behaviour:

1. Log into game
2. Send a message
3. Everything will continue working OK
4. Set chat status to "Off"
5. Send another message
6. All packets afterwards will be read incorrectly by the server

Expected behavior
Both packets (75 and 32) should be read correctly

Additional context

• Both 75 and 32 are read correctly normally, the issue only occurs when 32 is automatically sent
• 32 is sent immediately after 75 if chat was set to "off" https://github.com/runejs/refactored-client-435/blob/c57098f60b17a6773f36cd38078070e3250b9468/src/main/java/org/runejs/client/MovedStatics.java#L1709
• I notice that our chat.packet uses a length of -3, this is possibly wrong because the client sends a byte indicating the length, so -1 might be more suitable