Add repo selector

[chartgerink]

I want to still add a way for people to select the repository they want to contribute to. This requires loading all the repositories on which the application is installed, and providing a way to select them.

I previously implemented something that worked in the local development, but broke in the deployment because of netlify function security protocols. Old code included in the details.

  const [data, setData] = useState<any[]>([])

  useEffect(() => {
    fetch('/.netlify/functions/retrieve-installed-apps')
      .then((response) => response.json())
      .then((data) => {
        console.log(data)
        setData(data)
      })
  }, [])
....
 {!!data
             ? data.map((project) => ( 
            <li
                    key={project.repo}
                    className="col-span-1 flex rounded-md shadow-sm"
                  >
                    <div className="flex flex-1 items-center justify-between truncate rounded-r-md border-b border-r border-t border-gray-200 bg-white">
                      <img
                        className={classNames(
                          project.bgColor,
                          'contain flex w-16 flex-shrink-0 items-center justify-center rounded-l-md text-sm font-medium text-white'
                        )}
                        src={project.avatar}
                        alt={`Avatar of ${project.handle}, the group behind ${project.repo}`}
                      />
                      <div className="flex-1 truncate px-4 py-2 text-sm">
                        <a
                          href={project.href}
                          className="font-medium text-gray-900 hover:text-gray-600"
                        >
                          {project.repo}
                        </a>
                      </div>
                    </div>
                  </li>
            ))
            : ''}