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.

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

Another batch of `loot-core` migrated.

Another batch of files from `loot-core` migrated to TS (loose mode)

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.

Upgraded `fast-check` to improve unit test performance.

* Update gitignore about .idea folder

The .idea folder is generated by IntelliJ IDEA

* Add integration with Nordigen

* Fix linter

* Use longer access to the account

* Move normalizatoin of accounts to the backend side

* Fix possibility to force remove account

* Move normalization of transactions to the backend side

* Fix Settings.js after merge

* fix enableing bank sync

* delete old Settings component

* Use camelCase for nordigen/remove-account call

* WIP refactor

* Fix auto-selecting existing accounts

* Fix unlinking accounts

* Align to backend changes for Nordigen integration

* Fix AnimatedLoading

* Code review changes

* Fix TZ date issue

* rm mobile package

* rm BankSync settings section

* rm console.log

* rm comment

* applies some alignments from code review

* applies some alignments from code review

* Add prefix for nordigen specific functionality

* Use arrow char

* Add prefix for nordigen functionalities

* Fix linter

* Display only open accounts

* Update packages/desktop-client/src/nordigen.js

Co-authored-by: Jed Fox <git@jedfox.com>

* Fix incorrect calc of TZ for endDate

* Improved error checking

* Fix throwing invalid-schema error

* Fix for syncing large batches in Safari

---------

Co-authored-by: Filip Stybel <filip.stybel@ynd.co>
Co-authored-by: Leon Ebel <24588023+ebelleon@users.noreply.github.com>
Co-authored-by: Jed Fox <git@jedfox.com>

* Provide more debugging information when throwing an invalid-schema sync error

* Don’t log the errors directly

* Update dynamic cell warning to be clearer

* rebuild

*  (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

* 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