Quota leaderboard should update automatically on additional conditions

[ewang2002]

Quota leaderboards should update when a staff member either loses a role that has a quota (e.g., they get demoted or step down), or when they leave the server.

A/C (Acceptance Criteria):

• [feat] When a member leaves the server, all quota leaderboards for which they had an associated role for should update appropriately
• [feat] When a member loses a role that has a quota attached to it, the associated quota leaderboard should update accordingly.
• [fix] When a change occurs that requires the quota leaderboard to be updated, the leaderboard should automatically filter out people that do not have the role (this is an issue with the current implementation).

[nyapat]

Is updating when the next reset occurs enough? -- would just be ensuring everyone in the quotaLog still has a staff role. Adding an event that would trigger every time someone leaves the server (guildMemberRemove) would be possible but I think it's unnecessary complexity (check if they have staff role, trigger embed updates with checkForReset, handle issues that inevitably arise)

[ewang2002]

That's fine with me.