Include num of mentors who approved a request

[moshfeu]

Currently, we are not telling to mentor if the request already approved by other mentors. When a request approved by other mentor, mentees intent to not respond to later approvals.

Since we want to be as transparent as possible, it's could help to mentors to know that the mentee already approved so if they approve them too and are don't hear from the mentee, they will know why.