* Declare return types on functions
And a very few other type related minor fixes
* Minor syntax fixes
* Remove unnecessary escape chars in regexes
* Remove unnecessary awaits
* Replace deprecated req.connection with req.socket
* Replace deprecated upload with uploadOne
* Remove unnecessary eslint-disable-next-line comments
* Comment empty functions / catch or finally clauses
* Fix irregular whitespaces
* Add missing returns (null)
* Remove unreachable code
* A few logical fixes
* Remove / Handle non-null assertions which are certainly unnecessary (e.g. in
tests)
* Start the xOne/xMany work
* Update update/upsert
* Finish updating itemsservice
* Add comments, add nested revisions on update
* Use new internal api
* Update collectionService to one/many structure
* Move files to one/many structure
* Move permissions to one/many structure
* Move relations service to one/many structure
* Move roles to one/many structure
* Move users service over
* Move webhooks to updated structure
* Move deprecated methods to the bottom
* Replace deprecated uses
* Use new methods in controllers, add batch update/delete by query
* Use updated methods in API
* Fix email being required
* Remove unnecessary DB call
* Fix batch update/delete validation
* Start on database-error abstraction layer
* Add SQLite error abstraction
* Enable SQLite foreign key support
* Cleanup sqlite dialect slightly
Does it matter? Not really!
* Add MySQL error abstraction
* WIP Almost done with MSSQL
* Add correct error handling for MS SQL
* Fix mysql errors by not relying on value order
* Don't rely on sql in postgres exception translation
* Fix sqlite error parsing
* Remove foreign key constraint from activity to collections
A collection can be DB-only, but we still want to track activity for non-meta collections
* Translate error on update as well
