[CON]: Mentor accepts more mentorship requests than mentioned in "mentee count".

[astkhikatredi]

Describe the bug
We faced a situation where a mentor was able to accept two mentorship requests despite having the capacity for only one mentee.

To Reproduce
Steps to reproduce the behavior:

1. Send two different mentorship requests to a mentor with a mentee capacity of only one.
2. Go to the mentor's "Applications" tab.
3. Accept both mentorship requests.

Expected behavior
A mentor should only be able to accept the number of mentorship requests specified in their "Mentee Count." Any additional mentorship requests beyond this capacity should be automatically invalidated.

In this case, the mentor had a capacity for only 1 mentee but was able to accept 2 mentorship requests.

Additional context
We found out this issue with mentor [email protected] and Astkhik also tested it with her accounts.

Update after the call with Kate on 09.01.
If a mentor receives multiple mentorship requests, they should only be able to accept the number of requests specified in their Mentee Count field in the profile. Therefore, we want to prevent mentors from accepting additional mentees once they reach their limit.
The solution is to disable the Accept button for those requests. Additionally, let's add a tooltip to the disabled button with the following text: "This request is disabled because you've reached your desired number of mentees.