When mentioning with @ if the username contains space the first name is recognised as the mentioned user.

[ZainTelebu]

Describe the bug
When mentioning with @ if the username contains space the first name is recognised as the mentioned user.

To Reproduce
Steps/code to reproduce the behavior:

public static var mention = DetectorType.custom(try! NSRegularExpression(pattern: "@[a-zA-Z0-9]{4,}", options: []))

Expected behaviour
It should recognise the mentioned text not only the first name.
print on console
Mention selected: @steven
It should print
Mention selected: @steven Deutsch

Screenshots

Environment

• What version of MessageKit are you using? 4.2.0
• What version of iOS are you running on? iOS 16
• What version of Swift are you running on? Swift 5
• What device(s) are you testing on? Are these simulators? iPhone 14 Pro Max
• Is the issue you're experiencing reproducible in the example app? it is reproducible in Example app.