Narrow types for hash, pathname and search

[lensbart]

Fixes #11254

In order to be able to run yarn build, I had to add some type casts. Not sure if this is the right tradeoff. My first approach was to update interface Path (which Location extends from), but this caused many type errors which eventually lead to having to typecast window.location etc. anyway. My second and current approach was to cast types at the outermost perimeter only.

The type casts are committed separately.

[changeset-bot]

🦋 Changeset detected

Latest commit: 28a079d

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

This PR includes changesets to release 4 packages

Name	Type
react-router	Patch
react-router-dom	Patch
react-router-dom-v5-compat	Patch
react-router-native	Patch

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[remix-cla-bot]

Thank you for signing the Contributor License Agreement. Let's get this merged! 🥳

[timdorr]

The only other thing this needs is some tests to ensure we don't break this in the future and it continues to function as expected through future versions of TS.

[lensbart]

@timdorr consider it done!