chore(repo): add package.json jest install script

[rwaskiewicz]

What is the current behavior?

Knowing where the shell script for jest scripts shouldn't necessarily be on one's mind when trying to develop for Stencil + Jest

GitHub Issue Number: N/A

What is the new behavior?

add an install.jest script to package.json to make it easier to install jest dependencies within the project. the motivator for this change is the following suggestion in a pull request that was a child PR of the one that implemented this functionality - #5068 (review)

Does this introduce a breaking change?

• Yes
• No

Testing

Manual testing

I was able to run npm run install.jest locally

CI

I tailed the logs and found the command still runs:

  npm ci \
  && npm run install.jest
  shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}

added 947 packages, and audited 948 packages in 11s

131 packages are looking for funding
  run `npm fund` for details

1 moderate severity vulnerability

To address all issues, run:
  npm audit fix

Run `npm audit` for details.

> @stencil/core@4.7.2 install.jest
> bash ./src/testing/jest/install-dependencies.sh

Installing dependencies in jest-27-and-under
npm WARN deprecated w3c-hr-time@1.0.2: Use your platform's native performance.now() and performance.timeOrigin.

added 342 packages, and audited 343 packages in 2s

30 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

/home/runner/work/stencil/stencil/src/testing/jest
Installing dependencies in jest-28

added 289 packages, and audited 290 packages in 2s

32 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

/home/runner/work/stencil/stencil/src/testing/jest
Installing dependencies in jest-29

added 291 packages, and audited 292 packages in 2s

32 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

/home/runner/work/stencil/stencil/src/testing/jest

Other information

[github-actions]

--strictNullChecks error report

Typechecking with --strictNullChecks resulted in 1367 errors on this branch.

That's the same number of errors on main, so at least we're not creating new ones!

reports and statistics

Our most error-prone files

Path	Error Count
src/dev-server/index.ts	37
src/mock-doc/serialize-node.ts	36
src/dev-server/server-process.ts	32
src/compiler/build/build-stats.ts	23
src/compiler/style/test/optimize-css.spec.ts	23
src/testing/puppeteer/puppeteer-element.ts	23
src/compiler/output-targets/dist-lazy/generate-lazy-module.ts	22
src/compiler/prerender/prerender-main.ts	22
src/runtime/client-hydrate.ts	19
src/screenshot/connector-base.ts	19
src/runtime/vdom/vdom-render.ts	18
src/compiler/config/test/validate-paths.spec.ts	16
src/dev-server/request-handler.ts	15
src/compiler/prerender/prerender-optimize.ts	14
src/compiler/sys/stencil-sys.ts	14
src/compiler/transpile/transpile-module.ts	14
src/runtime/vdom/vdom-annotations.ts	14
src/sys/node/node-sys.ts	14
src/compiler/build/build-finish.ts	13
src/compiler/prerender/prerender-queue.ts	13

Our most common errors

Typescript Error Code	Count
TS2345	403
TS2322	384
TS18048	310
TS18047	100
TS2722	38
TS2532	34
TS2531	23
TS2454	14
TS2352	13
TS2769	10
TS2790	10
TS2538	8
TS2416	6
TS2344	5
TS2493	3
TS2488	2
TS18046	2
TS2684	1
TS2430	1

Unused exports report

There are 14 unused exports on this PR. That's the same number of errors on main, so at least we're not creating new ones!

Unused exports

File	Line	Identifier
src/runtime/bootstrap-lazy.ts	21	setNonce
src/screenshot/screenshot-fs.ts	18	readScreenshotData
src/testing/testing-utils.ts	198	withSilentWarn
src/utils/index.ts	145	CUSTOM
src/utils/index.ts	269	normalize
src/utils/index.ts	7	escapeRegExpSpecialCharacters
src/compiler/app-core/app-data.ts	25	BUILD
src/compiler/app-core/app-data.ts	115	Env
src/compiler/app-core/app-data.ts	117	NAMESPACE
src/compiler/fs-watch/fs-watch-rebuild.ts	123	updateCacheFromRebuild
src/compiler/types/validate-primary-package-output-target.ts	61	satisfies
src/compiler/types/validate-primary-package-output-target.ts	61	Record
src/testing/puppeteer/puppeteer-declarations.ts	485	WaitForEventOptions
src/compiler/sys/fetch/write-fetch-success.ts	7	writeFetchSuccessSync