add metric capture to js

## SMS

* [x] total unique users (text widget)
* [x] total registered users (text widget)
* [x] total unique users and registered users per week (line graph widget)
* [x] total girl registered users
* [x] total messages sent (text widget)
* [ ] total messages delivered (text widget)
* [x] total messages received (text widget)

## USSD

* [ ] total unique users
* [ ] total registrations (text widget)
* [ ] total users and total registrations per week (line graph widget)
* [ ] total girl registered users
* [ ] total sessions initiated (text widget)
* [ ] total sessions per week and total unique users who initiated a session per week (line graph widget)
* [ ] articles views per week (line graph widget)
* [ ] shangazi advice views per week (line graph widget)
* [ ] directory views per week (line graph widget)
* [ ] opinions views per week (line graph widget)
* [ ] quiz views per week (line graph widget)