* Another round of prefer-const rule updates

* Release notes

* Fix test error

* Fix sync.ts

Following on from #1146 this PR removes all unused exports from
`loot-core/`

Fixes #615. I would appreciate double-checking that I didn’t
accidentally delete anything that is important.

Since I’m removing the related API methods, this is technically a
breaking change (even if people would have no reason to remove this
stuff), so we should probably do a major release of the API package.

Another batch of `loot-core` migrated.

* Sort transactions by date in updateCategoryRules

* Update better-sqlite3 to 7.5.0

* Update better-sqlite3 to v8

*  (prettier) adding trailing commas

* More commas

*   upgrade eslint-plugin-import and fix issues

* Change import ordering

* style: enforce sorting of imports

* style: alphabetize imports

* style: merge duplicated imports