Closes #1328

Closes #1471

Part 3 of the migration.

Part 2 here: https://github.com/actualbudget/actual/pull/1419

Renaming all occurrences of Nordigen to GoCardless

There's no new code here, just a reorg. Had to change some import calls
in some files to make it all work properly.

Having just done a lot of work in the accounts directory I figured it
could do with some organization. I've broken out all the Header
functions into a different file in order to cut down on the size of the
account.js file.

I also moved the transactions files into a new directory since they are
used by other pages. Also makes them easier to find with this structure.

Closes #1236

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

Adding background update to cleared/uncleared boxes on accounts page.
This is needed due to Accounts page background change in previous PR
(#1122)

Closes #1249

Also removing some unused code

For #547 

In addition to the arrow icon, I have also updated the
recurring/calendar icon to open the edit schedule page.

Also remove the need to unmount & remount when switching between
accounts. Fixes #1169

For #1152

* Provide `match` prop to class components that still rely on it.
* Fixes #1169
* Fixes an unrelated crash on Payees

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

Closes #551

Make scheduled transfers appear in both accounts.

Fixes #913. (And probably a few other similar bugs)

Added onboarding and budget e2e tests. Also fixed an issue for
first-time flows using imports: currently people end up with a blank
white screen after importing. Instead they should see the budget table.

Related: https://github.com/actualbudget/actual/issues/583

Seems to build fine, will test later.

Adding a "create rule" menu item in the transactions dropdown to open
the create new rule modal, pre-filled with the payee information.
Fixes #749

Refactored all feature flags to use the new `useFeatureFlag` hook.

Also added a new functionality to this feature flag: ability to define
custom "default" value for a feature flag. This will allow us to enable
the new autocomplete component for everyone using Netlify builds
eventually (need to address some issues before doing so).

- Add a “hide decimal places” setting to visually hide the `.xx` from
currency values globally
- When hiding the fractional digits, slightly decrease character spacing
to allow more digits to show up

Ref: #327

New settings:
<img width="566" alt="Screenshot_2023-03-17 14 19 46"
src="https://user-images.githubusercontent.com/25517624/225986815-b884b93d-02f9-48b3-a73d-d27f90b678cf.png">


Before/after:
<img width="149" alt="Screenshot_2023-02-27 21 47 07"
src="https://user-images.githubusercontent.com/25517624/222916856-21ab4f03-56c6-4b24-8fc1-ac4b883138b7.png"><img
width="131" alt="Screenshot_2023-02-27 22 02 01"
src="https://user-images.githubusercontent.com/25517624/222916859-cf882ca3-6087-4994-818e-239c3374e412.png">

Related to:
https://github.com/actualbudget/actual/issues/724#issuecomment-1455160250

Depends on https://github.com/actualbudget/docs/pull/126 to be merged
first.

Two changes here:
1. show "link account" only if actual-server is used (user is "online");
2. allow linking accounts only if Nordigen is configured (using new API
to get the status for it);

Also ported the `CreateAccount` modal to a functional component.

* 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

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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>