Force Vue and Svelte language servers to be the first in the list for…

… their languages (#16654)

Follow-up of #15624

Fixes #13769
Fixes #16469

This way, those are considered "primary" and serve all LSP requests like
go to definition. Before, Tailwind language server was first and
returned nothing for all LSP requests.

- Fixed Vue and Svelte languages integrations not handling LSP requests
properly ([#13769](#13769))
([#16469](#16469))