Audit the unused Project properties

I reviewed the properties marked as unused in the Project file. I found that 'selector_id' is being used but no others are referenced from any svelte files.

I removed some parameters from the public function, since they are not needed in Svelte. Although, I left the private functions to set those parameters, since they are used when getting the project data from drupal.org, and we'll probably want to have that in case there is a need to display that info.

The Star User Count is never used and is only ever set to a static value. So this could likely be removed completely.

This looks good and tests are passing. However, I'd like Tim or Fran to give it a review first.

I think that if we are going to remove the exposed properties because they are not used, then we should also remove all the associated methods, like setters and getters.

For example: https://git.drupalcode.org/search?search=setIsActive&nav_source=navbar&p...

chrisfromredfin → closed merge request !386

chrisfromredfin → changed the visibility of the branch 3309273-audit-the-unused to hidden.

I've refactored this since the previous one was so dated, but I think this is better and spreads deeper into the codebase; would love Fran to look at it.

I left some feedback in the MR. If we are cleaning up purely based on what's shown in the svelte templates, then it might be ok, but there are certain properties that are in use one way or another (ie: via filters) or that should be used but might be not (ie: URL).