[pack/vue] disable semanticTokens for vtsls with .vue files

[tobias-haenel]

Is your feature related to a problem?

there were some changes in the vue.js language tools wiki entry for Neovim seems like vue_ls/volar is now handling semantic tokens instead of vtsls, the semantic token capability of vtsls should be disabled for single file components (.vue files) inside on_attach

Describe the new feature

See Neovim#custom-component-highlight for details

Additional context

No response