``onAccountNameChange`` event

[PlatinMTA]

Is your feature request related to a problem? Please describe.

Triggered after succesfully using setAccountName

Describe the solution you'd like

setAccountName event with parameters:
account theAccount, string previousName, string newName

Describe alternatives you've considered

No response

Additional context

No response

Security Policy

• I have read and understood the Security Policy and this issue is not about a cheat or security vulnerability.