Improving error handling for Nordigen.

Before: if loading banks failed - a loading indicator would be shown
forever.

After: is loading banks fails - an error message is shown.

Removing `react-select` and the new autocomplete. This experiment has
failed, so cleaning things up now.

Seems to build fine, will test later.

Adding an explicit bank-sync warning disclaimer.
#724 

<img width="542" alt="Screenshot 2023-03-21 at 20 09 54"
src="https://user-images.githubusercontent.com/886567/226729803-29606532-3d9f-4114-8987-9612bd92181b.png">

The final `Autocomplete` refactors. After this is merged what's
remaining is to do extensive testing and address the bugs in
https://github.com/actualbudget/actual/issues/773

This PR moves `Nordigen` autocomplete to the new one without using a
feature flag. IMO this is a safe change given the simple nature of the
Nordigen autocomplete component.

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.

Related to: https://github.com/actualbudget/actual-server/pull/144

See the above PR for more details.

---

<img width="577" alt="Screenshot 2023-03-05 at 17 54 10"
src="https://user-images.githubusercontent.com/886567/222977363-605f8b1e-be7d-4594-93c7-dfaa6cb15ac3.png">

* 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>

*  (prettier) adding trailing commas

* More commas

* Removing dead links

Removing any links that no longer exist and can't move the content to docs.

* Update packages/loot-design/src/components/modals/PlaidExternalMsg.js

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

* Update upgrade-notifications.js

Added video link back in

---------

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

* Regenerate icons without the .web.js extension

* Move icons in the root folder to a “v0” folder

* Remove generated index.js files

* Update generator to auto-remove deleted icons

* Add back AnimatedLoading + Loading

* Add SVG files for missing icons

* lint fix

* the perils of (not) running a case-sensitive file system

* Fix new import

* Switch v0 icons from width/height to viewBox

* 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

* build: add linter to loot-design package

* style: automated fixes

* style: manual linter fixes