* revert built in number parse

* note

* tests

* remove trivial test

* more tests

---------

Co-authored-by: Julian Dominguez-Schatz <julian.dominguezschatz@gmail.com>

* Update regex for `looselyParseAmount` for 5-9 decimal places

* Add release note

* Update comment, add some more tests

* allow specifically 5 decimal places in parser

* note

* update tests

* lint

* specify 2 decimal places in the csv amount parser

* note

* update tests

* cleanup

Part 1 of the conversion. Mostly renaming js to ts and making sure
things make still sense. Added also handy TS ESLint rules.

In order to support the various .web/.electron/... I ended up adopting
`index.d.ts` as pattern to share type definition. Let me know if that
makes sense for you too. Right now the function type definition is
duplicated, but the solution will be importing from `index.d.ts` and
using `const fn: FnDef = () => ...` that way we can keep all variants in
sync from a single type file.

Such rewrite however is better done in another PR otherwise we risk
confusing git and loosing history (rename + too many changes). Another
thing that might do in the next PR is convert all files to ESModules, as
things get confusing between CJS exports, ESM default/named and TS adds
extra complains.

- When parsing an amount string, consider surrounding parentheses to
mean the amount is negative.
- Ensures all input to `parseFloat()` is sanitized.

Closes: #807 

- 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">