Update Global Chat

[RusseII]

Fixes the security issues that resulted in plugin getting disabled in https://github.com/runelite/plugin-hub/commit/9f331caab55f672ad96ea8d69e55d33bae08da57

1. This is exfiltrating all dms to a channel anyone can subscribe

• Moves from using ably's basic auth to using token auth with minimal permissions.
• Revoked previous API key
• Encrypts all messages

2. allows spoofing messages with the mod crowns.

• Fixed by only allowing ironman icons with the new and getValidAccountIcon and isInvalidUsername function

[runelite-github-app[bot]]

global-chat: 403f4d0d17dd537838f3929a37bb095e1e5e3372...f2afe9813b9cd887809a5011e30a4ccda1178d36

[LlemonDuck]

Instead of checking for specific control characters, it's better to just sanitize the entire message using `Text#removeTags. https://github.com/RusseII/region-chat/compare/403f4d0d17dd537838f3929a37bb095e1e5e3372...RusseII:9cdb1c0f31c57a214209a836cfbb2973254d629d#diff-51d34e1338ae68af40061f38cd1ddea82fbcf922e3c55828aa0e3264d16fd0c2R366-R368

[LlemonDuck]

Marking as draft for now. Please make the requested changes, then mark the plugin as ready for review.

[RusseII]

Thanks @LlemonDuck. Added your suggestions