* Some initial UI work for adding SimpleFin.

* SimpleFin proof of concept working.

* Adds linking & unlinking to existing accounts through the account menu UI.

* Added loading and lint fixes.

* Lint changes.

* Added release notes.

* Typecheck cleanup.

* Import, lint, typecheck cleanups.

* More typecheck cleanup.

* Refactored language for consistency.

* Added default institution name.

* Lint cleanup.

* Addressed change requests.

* Added a default to migration, made variables consistent, added feature flag.

* Added account_sync_source to server schema.

* Adds account_sync_source to test.

* Fix for typecheck.

* Attempt to make typecheck happy.

* Added strict ignore.

* Moved account_sync_source to the right model (face palm).

* Hotfix for institution format.

* Lint cleanup.

* Removed unnecessary promise.all.

* Lint cleanup.

* Part 2 of eslint prefer-const

* Release notes

* Update

I noticed that:

- The web and electron versions of our `uuid` module both looked exactly
the same…
- …and deferred to the `uuid` package…
- …and the async version just called the sync API.

So now we will just use the `uuid` package directly everywhere.

This is the last PR with lots of renaming for `loot-core`!

This PR converts everything (aside from electron) from CommonJS to ESM.
It is needed to reduce the changes that will happen during the migration
to Typescript (as TS does not play nice with CJS).

Basically:
- rewrite `require()` to `import`
- rewrite `module.exports` to `exports`
- introduce `ts-node` to run importers so we can convert them to TS too

Lastly, sorry for this larg-ish PR, not my preference but when I tried
to reduce its scope, I would end up with mixed commons/esm that was even
more tricky to handle.

*  (prettier) adding trailing commas

* More commas

* style: enforce ordering of imports

* style: sort imports in loot-core

* style: sort imports in desktop-client

* style: sort imports in loot-design

* style: manual fixes