Increase the number of max CCs for HelpDesk

> To prevent service abuse, we must provide a limit of the number of CCs. Currently, it's set to 5. However, some user cases may >require a larger number of CCs to accommodate their support workflows.

> If you'd like to see this limit increased, please provide the desired limit and a short explanation as to why.

https://youtrack.jetbrains.com/issue/JT-77785/Increase-the-number-of-max-CCs

I can't comment on the original issue, but I occasionally require at least 15 CCs for e-mail with cross company coordination.

> To prevent service abuse, we must provide a limit of the number of CCs.

I understand, but we are on a self hosted instance. I think in such a case the limit should definitely be configurable, but I couldn't find a related option.