This attempts to add priorities for goal templates and addresses most of
https://github.com/actualbudget/actual/issues/959

.

I couldn't find a good way to preserve both "Apply" and "Overwrite"
operations, so this PR does away with the current "Apply" action
behavior. Every box with a budgeted value will be overwritten if a
template goal is present.

The added syntax to define priorities is as follows:
#template    -- priority 0, highest priority
#template-1  --priority 1, 2nd highest priority
#template-2 --priority 2, 3rd highest priority
#template-N --priority N, as many as you'd like.

~~Leaving as a draft as this may not be the preferred implementation but
I wanted others to be able to try it with netlify.~~

---------

Co-authored-by: Caleb Young <cwy@rincon.com>

Hi there, `Peg.js` is unmaintained, so I figure you all would appreciate
if I replaced it with the drop-in replacement of Peggy. This is work I
am breaking out of #918.

Peggy adds new features like source map support that we could use,
although I do not include that in this change-set. It may be useful for
debugging changes to the .pegjs file we have.e

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

Resolves issue https://github.com/actualbudget/actual/issues/888

* 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