UChat Free trial options for partners

With this update, UChat partners can:

1. Select how many days of free trial they can offer

2. Offer free trial for new user or every new created workspaces.

More details here:
https://uchat-com-au.atlassian.net/wiki/spaces/UKB/pages/688881665/Partner+free+trial+option
https://www.youtube.com/watch?v=2ySxPEzWJ-Q