lsp: auto-completion for registries should prefer mod.ts

[kitsonk]

The lsp should prefer a /mod.ts over other imports when providing registry completions.

[kitsonk]

Related: #10440

[lucacasonato]

I think this should be done by registry providers. They can determine sort order right?

[kitsonk]

I have no problem leaving it up to the registries.

They can determine sort order right?

It is open to interpretation, we are setting a key that ensures that they get displayed in the order received, which is "convention" versus "specification". There is also the preferred flag in the response (only one can be marked preferred). So it would be best when we do v2 of the specification (including the incremental/partial lists) to provide explicit sort text and an explicit preferred flag.

[kitsonk]

We will leave as part of #10051.