* improvements to caching for lists and relationship to accounts / follows
* fix nil panic in AddToList()
* ensure list related caches are correctly invalidated
* ensure returned ID lists are ordered correctly
* bump go-structr to v0.8.9 (returns early if zero uncached keys to be loaded)
* remove zero checks in uncached key load functions (go-structr now handles this)
* fix issues after rebase on upstream/main
* update the expected return order of CSV exports (since list entries are now down by entry creation date)
* rename some funcs, allow deleting list entries for multiple follow IDs at a time, fix up more tests
* use returning statements on delete to get cache invalidation info
* fixes to recent database delete changes
* fix broken list entries delete sql
* remove unused db function
* update remainder of delete functions to behave in similar way, some other small tweaks
* fix delete user sql, allow returning on err no entries
* uncomment + fix list database tests
* update remaining list tests
* update envparsing test
* add comments to each specific key being invalidated
* add more cache invalidation explanatory comments
* whoops; actually delete poll votes from database in the DeletePollByID() func
* remove added but-commented-out field
* improved comment regarding paging being disabled
* make cache invalidation comments match what's actually happening
* fix up delete query comments to match what is happening
* rename function to read a bit better
* don't use ErrNoEntries on delete when not needed (it's only needed for a RETURNING call)
* update function name in test
* move list exclusivity check to AFTER eligibility check. use log.Panic() instead of panic()
* use the poll_id column in poll_votes for selecting votes in poll ID
* fix function name
