[Bug] <luckperms_prefix> doesn't work in cross-server whispers

[hawtre]

Bug Description:

I have whisper.from configured to use <luckperms_prefix>. When I send a cross-server whisper, the <luckperms_prefix> is sent as a literal when I receive the whisper.from message.

What is not working as it should?

<luckperms_prefix> in whisper.from configuration when doing cross-server whispers

Steps to reproduce:

1. Set up 2 Paper servers running behind Velocity
2. Install Carbon, Vault, LuckPerms, MiniPlaceholders, MiniPlaceholders-LuckPerms-Expansion
3. Set up Redis and configure Carbon to use it for cross-server functionality
4. In locale/messages-en_US.properties, set whisper.from=<luckperms_prefix><sender_display_name>
5. Send a cross-server whisper. The received message will contain e.g. <luckperms_prefix>hawtre - the tag hasn't resolved and is sent as a literal, though <sender_display_name> resolved fine

System Details:

1. Server Type: Paper
2. Server Software: 1.21.4 build 138
3. MC Version: 1.21.4
4. Carbon Version: v3.0.0-beta.28 and https://github.com/Hexaoxide/Carbon/actions/runs/13149593600

Pastebins:

Any other relevant details:

1. <luckperms_prefix> DOES work for cross-server channel messages
2. <render_for> also has an issue with whisper.to that may be related.
   Configure whisper.to=<render_for:'<recipient_uuid>':'<luckperms_prefix><recipient_display_name>'> and the message says <luckperms_prefix>hawtre