Refactor/shared tooling

[rschristian]

Stems from #664, an issue that ESLint would've caught had it been set up.

• Removes ESLint, Husky, and Prettier config from packages/wmr. It's all duplicated at the package root. We don't need it.
• Updates workflows
• Fixes low-hanging linting issues in preact-iso
• Includes .ts files in pre-commit hook so no more needing to run prettier manually on them

[changeset-bot]

🦋 Changeset detected

Latest commit: 62840d8

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
preact-iso	Patch

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[rschristian]

I did have to run npm rebuild / npm rebuild --update-binary in order to make Husky play nice. Lint staged kept strangely erroring out otherwise.

[github-actions]

Size Change: 0 B

Total Size: 5.95 kB

ℹ️ View Unchanged

Filename	Size	Change
packages/preact-iso/.dist/index.********.js	1.58 kB	0 B
packages/preact-iso/.dist/prerender.********.js	344 B	0 B
packages/preact-iso/hydrate.js	290 B	0 B
packages/preact-iso/index.js	195 B	0 B
packages/preact-iso/lazy.js	594 B	0 B
packages/preact-iso/prerender.js	629 B	0 B
packages/preact-iso/router.js	2.32 kB	0 B

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