chore(deps): update dependency svelte to ^5.12.0 [skip ci]

This MR contains the following updates:

Package	Type	Update	Change
svelte (source)	devDependencies	minor	^5.10.1 -> ^5.12.0

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Release Notes

sveltejs/svelte (svelte)

v5.12.0

Compare Source

Minor Changes

• feat: expose more AST types from "svelte/compiler" (#​14601)

Patch Changes

• fix: don't add parenthesis to media query if already present (#​14699)

• fix: ensure if block paths retain correct template namespacing (#​14685)

v5.11.3

Compare Source

Patch Changes

• fix: allow unquoted slash in attributes (#​14615)

• fix: better handle hydration of script/style elements (#​14683)

• fix: make defaultValue work with spread (#​14640)

• fix: avoid mutation validation for invalidate_inner_signals (#​14688)

v5.11.2

Compare Source

Patch Changes

• fix: correctly handle ssr for reactivity/window (#​14681)

v5.11.1

Compare Source

Patch Changes

• fix: account for global block in is_empty (#​14677)

• fix: remove overzealous reactive_declaration_non_reactive_property warning (#​14663)

v5.11.0

Compare Source

Minor Changes

• feat: add svelte/reactivity/window module (#​14660)

Patch Changes

• fix: take into account registration state when setting custom element props (#​14508)

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