#919 Rename "Discussion" tab to "Discussions" or "Forums" like "Tickets" tab

[Neustradamus]

Dear @forge team, @sf-support, @brondsem,

It will be nice to harmonize, there is a "Tickets" tab and a "Discussion" tab.
I think it is needed to rename "Discussion" to "Discussions" or "Forums".

Thanks in advance.

Thanks in advance.