Phew, IG import is now fixed!

This was kind of complicated to fix, basically the issue was caused by the task scheduler trying to process imports but there was no logic to handle deleted accounts, so I fixed that, but then I found another issue, people importing the same files and the cache invalidation logic wasn't suited for that, and last but not least, imported files persisted after account deletion.

All fixed now, I still need to add Select All which should ship later this week!