fix(floating-layer): missing effect dependency

[dylan1951]

Fixes #1881

To be honest I have no idea what I'm doing but this fixes the bug..

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[vyconm]

fixed by sveltejs/svelte#17105 in Svelte 5.43.34

[dylan1951]

No it's still broke.

[huntabyte]

This is not necessary and seems like a hack to get around some Svelte bug.

[dylan1951]

@huntabyte I’m too dumb to create a minimal reproduction for the svelte team though 😢

[dylan1951]

Closing as this is definitely a svelte bug