Update dependency @sveltejs/kit to v2.50.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@sveltejs/kit (source)	2.49.2 → 2.50.0

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Release Notes

sveltejs/kit (@​sveltejs/kit)

v2.50.0

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Minor Changes

• breaking: remove buttonProps from experimental remote form functions; use e.g. <button {...myForm.fields.action.as('submit', 'register')}>Register</button> button instead (#​15144)

v2.49.5

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Patch Changes

• fix: avoid overriding Vite default base when running Vitest 4 (#​14866)

• fix: ensure url decoded pathnames are not mistaken as rerouted requests (d9ae9b0)

• fix: add length checks to remote forms (8ed8155)

v2.49.4

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Patch Changes

• fix: support instrumentation for vite preview (#​15105)

• fix: support for URLSearchParams.has(name, value) overload (#​15076)

• fix: put forking behind experimental.forkPreloads (#​15135)

v2.49.3

Compare Source

Patch Changes

• fix: avoid false-positive Vite config overridden warning when using Vitest 4 (#​15121)

• fix: add typescript as an optional peer dependency (#​15074)

• fix: use hasOwn check when deep-setting object properties (#​15127)

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