Removed the checklist item for ensuring CI is passing. We don't really have CI as of yet and it's confusing to list that requirement. If we do add CI, we'll make it required instead of adding it to the template checklist.
Adds clarification around our expectations for contributions and
how contributions will be handled when they don't meet our requirements.
Updates template to lean into our contribution guidelines.
Cleans up duplicate wording around our contribution guidelines.
