Feat - 87 - Extract Permission Logic

[maubarraganwize]

What does this PR do?

Extracts permission logic from project.server.ts file to a separate file. Small bugfixes.

Where should the reviewer start?

app/models/project.server.ts
app/utils.ts

How should this be manually tested?

Go to Project page. Make sure that the page works correctly
Go to project members page (contributors) make sure the page works and saves correctly

Any background context you want to provide?

What are the relevant tickets?

#87

Screenshots

Questions

Checklist

• I added the necessary documentation, if appropriate.
• I added tests to prove that my fix is effective or my feature works.
• I reviewed existing Pull Requests before submitting mine.

[jackbravo]

I added some comments. But as soon as they are solved, feel free to merge, they are minor I think.