Account with no reels needs empty json created

[benni-e]

Account had no reels associated to it, which was correct, there are no reels posted.

So there was no reels.json and the run was returning Error: ENOENT: no such file or directory.

Fixed by creating empty reels.json with '[]'

[straiforos]

Thank you for letting us know. I will add more defensive logic.

[straiforos]

This should be resolved in #46