Show actual (num) counters inside hamburger menu (number of Volunteer's missions; number of requests; etc)

[karenkun]

These numbers require more dev effort to output in to the menu so they've been moved into this ticket. (Original hamburger menu ticket: #489)

Numbers to show in ( ):

1. number of requests submitted
2. number of requests waiting for confirmation
3. number of missions available
4. number of missions awaiting confirmation (missions that are in progress)
5. number of missions done (missions that are waiting for recipient to confirm)

[mat10tng]

The options that exist to do deal with this is

1. Keep a counter in our firebase system that handles just this problem
2. Just use SQL database instead of firebase
3. missions.where(isDone === true).fetchAll().length -> pseudocode, the bad option

The MVP option would be doing 3, but we are avoiding hitting the database right now since it is quite costly. Ehm, option 1 is harder, and require hooks from firebase, and option 2 is not really a valid option as of this moment.

[utunga]

Pretty hilarious to list option 2