*  (ofx) removing old parser

* Release notes

* Patch unit test

* Part 2 of eslint prefer-const

* Release notes

* Update

Updates to the latest version of electron and moves the backend-frontend
communication from node-ipc to websockets. This resolves the previous
roadblock regarding `nodeIntegration` .

Done

- Remove node-ipc in favour of websockets. 
- Move file copying out of `preload.js` to avoid importing module `fs`
there
- Bump all electron pacakge versions to the latest
- Added new package for finding open ports as node-ipc is gone
- Tweaked webpack config for above changes


Partially fixes #468

Questions/ Pending:
- Literally every single test fails for me, presumably some issue with
my setup/environment.
- The websocket communication is not using TLS. I'm not sure how to
enable this, or if we even need to as its all local.
- Still need to create the CI for building/deploying but I'm not sure
where start in this regard as i have no exp with it. Presumably we will
need to point the electron auto-updater to the github releases url's. If
people are happy with this PR I will look at adding the CI before its
merged.
- In dev mode only, I have disabled TLS security becuase my docker
container's cert is not signed. I _assume_ this will be true for other
people who spin up the server on thier own hardware. Perhaps I just need
to change my cert to one from letsencrypt or something...

Notes.
I have not touched javascript in eons so my apologies if the commit
trail is a bit fragmented. I tried to keep them fairly contained and
then there is a slightly gnarly final commit fixing all the linter
issues... Please let me know if you want me to squash some commits etc.

I initially tried to move this to web workers the same way the web app
does it but this was unsuccessful. I have found no way to spin up a
worker in one place (frontend/backend) and then pass this worker to the
other. The electron ipc channels don't allow you to directly pass
objects such as workers, everything is cloned/serialised. Passing a port
number so the other end can spin up its own socket works fine.

---------

Co-authored-by: Shazib Hussain <contact@shazib.com>
Co-authored-by: Jed Fox <git@jedfox.com>

Removing
- Debugger
- `perf-deeets`
- `codemirror`

* Dedupe loot-core webpack configs

* Swap to parsing using Peggy

* Actually record syntax errors

* Refactor template types

* Add notifications after applying the templates

* “Successfully”

* Try a Nearley grammar

* Revert "Try a Nearley grammar"

This reverts commit 1e11c07b855a492b905f1291c3eadd93f78ac3de.

Not going with this approach since the error messages are inscrutable.

* switch to PEG.js which has slightly better tooling support

* fix parser

* Fix error reporting

* Adjust grammar for better error messages

Also allow spaces between currency symbol and number

* Fix grammar

* Make #template prefix case insensitive

* Trailing commas

* Remove patch-package from loot-core