Moving nodemon to dev dependecies and remove body-parser for package modules

[pavan2108]

Feature request:

To avoid problems in future body-parser was deprecated in year 2021 and it's base features are moved to express.

Describe the solution you'd like:

1. Moving

   Opportunity-Calendar-Backend/package.json

   Line 35 in 4428ec0

   "nodemon": "^2.0.7",

   
   to dev-dependencies
2. Removing body-parser

   Opportunity-Calendar-Backend/package.json

   Line 25 in 4428ec0

   "body-parser": "^1.19.0",

   
   From package.json as it is deprecated