Source logs - File source refactor #3972
Description
The file source is one of our oldest components, and we've learned a lot since we created it. It's time we consolidate all of those learnings into a single place so that we can identify the appropriate improvement plan.
As noted in #3480, most of the file source issues are UX based, and much of the work here will focus on a better external API that reduces the decisions a user has to make. Once #3480 is complete we can break it down into issues and begin work.