Update dependency @solidjs/router to v0.15.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@solidjs/router	0.15.3 -> 0.15.4

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Release Notes

solidjs/solid-router (@​solidjs/router)

v0.15.4

Patch Changes

• da5e1f9: allow URLSearchParams type for when enctype is not set to multipart/form-data

• 1aa664e: - Improve route matching fallback

  • Optimize imports

• fa46b67: fix(type): allow value from Params and SearchParams to be optional

• bd89541: Support in operator for useParams()

• 0a2f556: preserve headers in query()'s handleResponse()

• ac97470: added SearchParams to the exported types

• 8885abf: fix: createAsync - catch errors of prev to avoid bubbling error up

• d665cc9: Fix Router popstate event handling logic

  • Simplified delta check logic for history navigation
  • Improved reliability of forward navigation detection
  • Fixed window.history.forward() navigation handling

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