feat: add useAllSearchParam hook

[bosi-programming]

Description

Adds a useAllSearchParam sensor hook that returns every URL search param as an object, so consumers don't need to instantiate useSearchParam once per param.

Closes #2390.

Repeated params keep their first value (?foo=bar&foo=baz → { foo: 'bar' }), matching useSearchParam's .get() behavior. Server fallback returns {}.

Type of change

• New feature (non-breaking change which adds functionality)

Checklist

• Read the Contributing Guide
• Perform a code self-review
• Comment the code, particularly in hard-to-understand areas
• Add documentation
• Add hook's story at Storybook
• Cover changes with tests
• Ensure the test suite passes (yarn test)
• Provide 100% tests coverage
• Make sure code lints (yarn lint).
• Make sure types are fine (yarn lint:types).