chore(deps): update dependency svelte2tsx to v0.7.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
svelte2tsx (source)	0.7.7 -> 0.7.8

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Release Notes

sveltejs/language-tools (svelte2tsx)

### [`v0.7.8`](https://togithub.com/sveltejs/language-tools/releases/tag/svelte2tsx-0.7.8) [Compare Source](https://togithub.com/sveltejs/language-tools/compare/svelte2tsx-0.7.7...svelte2tsx-0.7.8) - fix: rework bindable types strategy ([#​2361](https://togithub.com/sveltejs/language-tools/issues/2361))

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