Docs and Loggers for Grant Module

[adityapat24]

ℹ️ Issue

Closes #256

📝 Description

Added logger and swagger ui functionality for the grant module to improve documentation and make it easier to test routes

Briefly list the changes made to the code:

1. Added logging statements to document how code is functioning in the grant modal and added purpose statements to all service methods.
2. Documented routes in swagger.

✔️ Verification

Ensured grant routes showed up in http://localhost:3001/api#/

[prooflesben]

create grant notifactions and update grant notifications have no logging

Make sure to put in 403 errors in the api responses as well. You can simlate this by not logging in and trying one of the routes for the example responses.