* add support for extracting Updated field from Statusable implementers
* add support for status edits in the database, and update status dereferencer to handle them
* remove unused AdditionalInfo{}.CreatedAt
* remove unused AdditionalEmojiInfo{}.CreatedAt
* update new mention creation to use status.UpdatedAt
* remove mention.UpdatedAt, fixes related to NewULIDFromTime() change
* add migration to remove Mention{}.UpdatedAt field
* add migration to add the StatusEdit{} table
* start adding tests, add delete function for status edits
* add more of status edit migrations, fill in more of the necessary edit delete functionality
* remove unused function
* allow generating gotosocial compatible ulid via CLI with `go run ./cmd/gen-ulid`
* add StatusEdit{} test models
* fix new statusedits sql
* use model instead of table name
* actually remove the Mention.UpdatedAt field...
* fix tests now new models are added, add more status edit DB tests
* fix panic wording
* add test for deleting status edits
* don't automatically set `updated_at` field on updated statuses
* flesh out more of the dereferencer status edit tests, ensure updated at field set on outgoing AS statuses
* remove media_attachments.updated_at column
* fix up more tests, further complete the dereferencer status edit tests
* update more status serialization tests not expecting 'updated' AS property
* gah!! json serialization tests!!
* undo some gtscontext wrapping changes
* more serialization test fixing 🥲
* more test fixing, ensure the edit.status_id field is actually set 🤦
* fix status edit test
* grrr linter
* add edited_at field to apimodel status
* remove the choice of paging on the timeline public filtered test (otherwise it needs updating every time you add statuses ...)
* ensure that status.updated_at always fits chronologically
* fix more serialization tests ...
* add more code comments
* fix envparsing
* update swagger file
* properly handle media description changes during status edits
* slight formatting tweak
* code comment
* start updating media manager interface ready for storing attachments / emoji right away
* store emoji and media as uncached immediately, then (re-)cache on Processing{}.Load()
* remove now unused media workers
* fix tests and issues
* fix another test!
* fix emoji activitypub uri setting behaviour, fix remainder of test compilation issues
* fix more tests
* fix (most of) remaining tests, add debouncing to repeatedly failing media / emojis
* whoops, rebase issue
* remove kim's whacky experiments
* do some reshuffling, ensure emoji uri gets set
* ensure marked as not cached on cleanup
* tweaks to media / emoji processing to handle context canceled better
* ensure newly fetched emojis actually get set in returned slice
* use different varnames to be a bit more obvious
* move emoji refresh rate limiting to dereferencer
* add exported dereferencer functions for remote media, use these for recaching in processor
* add check for nil attachment in updateAttachment()
* remove unused emoji and media fields + columns
* see previous commit
* fix old migrations expecting image_updated_at to exists (from copies of old models)
* remove freshness checking code (seems to be broken...)
* fix error arg causing nil ptr exception
* finish documentating functions with comments, slight tweaks to media / emoji deref error logic
* remove some extra unneeded boolean checking
* finish writing documentation (code comments) for exported media manager methods
* undo changes to migration snapshot gtsmodels, updated failing migration to have its own snapshot
* move doesColumnExist() to util.go in migrations package
