Mentioning user in slash command string option type still contains the `!` bang
Description
When mentioning a user in a slash command string option, it seems that Discord still uses the old mention formatting with the ! bang in front of the user ID: <@!1234567890>. It should have been updated to use the new format, which does not contain the exclamation mark.
Steps to Reproduce
Use a slash command that accepts string input. Mention a user inside of it. Printing the raw message content reveals that it still contains the ! bang.
Expected Behavior
The mention is formatted using the new style without the ! bang: <@1234567890>.
Current Behavior
The mention is formatted using the old style with the ! bang: <@!1234567890>.
Screenshots/Videos
No response
Client and System Information
Stable 135402 (4c5bcd6) Host 1.0.9005 Windows 10 64-Bit (10.0.22622).
(Windows 11 actually but Microsoft was not bothered to update the versioning number when it debuted).
I am aware this is deprecated behavior, but shouldn't it be updated?
A fix should be out shortly