Update on dependency update

**Describe the solution you'd like**
I think that it would be nice, if possible, for AREPL to save the names of files that are being used (e.g. changes in a text file that is read in the Python file, or changes in an imported script, etc.), and periodically check those files (e.g. every few seconds) and then if there is a change to this, for it to re-run the code.

**Describe negatives/issues you've considered**
- Scanning large files may take time.
- It is hard to find filenames in a script

Thanks for seeing this.
I love AREPL, starred the repo.