Another batch of `loot-core` migrated.

Hi there, 

I try to tackle #798 here. It was suggested to throw this behind a
feature flag, so here it is!

this does its best to import the problem file in #767. 

I am working on this because it would make my work on #918 easier :)

Feel free to set the feature flag to true and try the new importer. The
date parser is not as sophisticated as the one in `node-libofx`, but I
tried 3 different OFX files, one from my bank, one from the mocks, and
one from #767. They all seem to work well enough on that front, but this
is definitely the weak point of the new implementation.

Let me know what you think!

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.

Fixes #840 by creating application-defined SQL functions
(https://www.sqlite.org/appfunc.html) for Unicode-aware implementations
of `LOWER()` and `UPPER()`. This uses
`String.prototype.toLower/UpperCase()` JS method.

I initially wanted to just redefine `LOWER()` and `UPPER()` but due to
[sql.js not supporting the definition of deterministic
functions](https://github.com/sql-js/sql.js/issues/551), I had to just
define them as separate functions and use that in the appropriate
places. It's probably better like that anyway...

Fixes
https://github.com/actualbudget/actual/issues/724#issuecomment-1468453526

And add the missing fallback condition that wasn't catered in
https://github.com/actualbudget/actual/pull/745

Fallback to `bookingDate` if `valueDate` is empty.

Fix for:
https://github.com/actualbudget/actual/issues/724#issuecomment-1464914546

Try falling back to `remittanceInformationUnstructuredArray.join(', ')`
when neither `debtor/creditorName` nor
`remittanceInformationUnstructured` fields are present.

Addresses a suggestion from
https://github.com/actualbudget/actual/issues/724#issuecomment-1464907064

Check if the transaction amount is a positive 0 rather than -0.
I went for casting the string with `Number` but I could instead replace
the whole condition with `!trans.amount.startsWith('-')` or with
`trans.amount > 0 || trans.amount == '0.00'` if either of these variants
are preferred.

Fix for
https://github.com/actualbudget/actual/issues/724#issuecomment-1464907064

* 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 f...

* Sort transactions by date in updateCategoryRules

* Update better-sqlite3 to 7.5.0

* Update better-sqlite3 to v8

* Run `yarn dedupe`

* Update to better-sqlite3@latest

* Remove react-native

* Remove a bunch more unused deps

* Update mitt to 3.0

* Remove a few more

* Remove react-native-gesture-handler

* Revert "Update to better-sqlite3@latest"

This reverts commit d436bc8d73f2745f484def4e40596322d0c56458.

* Dedupe better-sqlite3 versions

* snapshots!

* Fix jsdom error

* Revert "Dedupe better-sqlite3 versions"

This reverts commit f99d2ab6f9311663e3312ab5b00bc81c068f040d.

* Add back jest-watch-typeahead

* Fix conflicting Jest version

(The jest-environment-jsdom package that is magically available seems to only be compatible with Jest 27)

*  (prettier) adding trailing commas

* More commas

* Allow libofx to handle decoding imported files

* Add releve.qfx as a test file

* Remove irrelevant redacted transactions from test file

* Fix console overload from long console.warn stacks

Closes #487

*   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