Renaming all occurrences of Nordigen to GoCardless

Goals: Fix calculated fill when using multiple 'up to' statements in different priority levels (#1312)

Co-authored-by: Matiss Janis Aboltins <matiss@mja.lv>

The logs for `invalid-schema` were not logging the used query or the
metadata. So fixing this.

It would make debugging issues such as
https://github.com/actualbudget/actual/issues/1296 easier.

This PR adds types to the `crdt` directory to make the structure of the
merkle tree (really a merkle radix trie) clearer.

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Co-authored-by: Jed Fox <git@jedfox.com>
Co-authored-by: Matiss Janis Aboltins <matiss@mja.lv>

Add recurring schedule support.

To test: use the schedule keyword with a daily or weekly recurring
schedule.

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.

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Just removing some unused/unnecessary scripts and `IS_BETA` env variable
+ the associated code (we don't use this in the OS version of Actual).

Based on Tom's comment
(https://github.com/actualbudget/actual/pull/1058#issuecomment-1568030881

)
I've eliminated all direct use of date-fns and only use the functions in
months.ts.

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Co-authored-by: Matiss Janis Aboltins <matiss@mja.lv>

I've updated the return values in `sync/index` to sensible values based
on how they're being called.

I've updated the type of `msg.value` to be `string | number | null` to
match the values expected by `serializeValue`

- New linter rules are now added
- Perhaps the `createPayee` method i've tagged with a disable should be
deleted.
- I have ignored unused methods in Plaid/Mobile as this stuff is still
WIP/experimental?

Looks like this got missed in the last PR!

Last one before I add the actual linter rules!

None of this code is relevant to people who have used the open source
app. I initially wanted to leave it in so it could be used for major new
features in the future, but as it falls further and further out of date
I think it’s best to just delete it in a clean PR that can be referenced
later if desired.

Following on from #1146 this PR removes all unused exports from
`loot-core/`

actual-server does not need to import the full actual-app/api package.
It can import only the CRDT stuff.. so I'm extracting it into a new
package to reduce the size of actual-server and make the link between
things more transparent.

URLs with the trailing slash don’t work well — requests end up being
made to `https://example.com//sync/sync`

 and such which can 404

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Co-authored-by: Matiss Janis Aboltins <matiss@mja.lv>

Depends on https://github.com/actualbudget/docs/pull/202.

Previously, the frontend would attempt to make real requests to
`https://not-configured/`, which of course failed. I’ve changed the
internal structure to have the lack of a server expressed as a `null`
server. A new `did-bootstrap` browser-level setting has been added to
track if the user clicked “Don’t use a server.”

Finally, I updated the auth logic for methods that call out to the
server to make them consistent and use the early return style which
reduces indentation.

This adds an option to the month drop down to check all the template
lines. If there are errors the offending line is shown with its
category.

I also modified the wording on the regular template return to be more
accurate. Fixes #1100

Bundle sizes are unchanged but now we no longer pull in the
Electron-specific FS code on the web version