Describe the bug
Game crashes when opening chat if you have the tweakChatPersistentText feature from tweakeroo active.
It would allow you to retain text you havent send yet if you leave the chat box.

Minecraft Info
Minecraft information:
-Minecraft 1.16.5
-AdvancedChat 2.1.2
-tweakeroo-fabric-1.16.4-0.10.0
-malilib-fabric-1.16.4-0.10.0
-mod-manager

To Reproduce

1. go into the tweakeroo confic and set the tweakChatPersistentText tweak under toggle tweaks to true
2. open chat

I'll add this to version 3!

Added in v3!