Write tests for `./setup.ts`

[palisadoes]

Is your feature request related to a problem? Please describe.

1. There has been a consistently poor experience with setup
2. We need to ensure that all scripts in the setup process are validated with tests.

Describe the solution you'd like

1. Move setup.ts to src/setup.
   1. If this is not advisable, then move most of it to a file src/setup/setup.ts and import its contents
2. Write complete and valid tests for src/setup/setup.ts
3. Ensure that test code coverage is 100%
4. Update package.json so that setup will work for Windows, MacOS and Linux

Describe alternatives you've considered

• N/A

Approach to be followed (optional)

• See above

Additional context

• N/A

Potential internship candidates

Please read this if you are planning to apply for a Palisadoes Foundation internship

• Student Internship Programs talawa#359

[abbi4code]

can i work on this issue ? @palisadoes

[lambaaryan011]

@abbi4code are you still working on this issue

[abbi4code]

@lambaaryan011 yes i will raise the pr soon