Cargo.toml version, features & dependency suggestion

[JustFrederik]

Check for existing issues

• [X] Completed

Describe the feature

code completion when writing dependency names/versions/features

If applicable, add mockups / screenshots to help present your vision of the feature

https://github.com/Saecki/crates.nvim

[JosephTLyons]

Not necessarily the same request, but linking these, as they go hand in hand:

• https://github.com/zed-industries/zed/issues/7081

[JustFrederik]

I played around with a language server that uses the crates.io http api. I tossed this tho, because the api takes quite long and has bad results. I can't accept 1 second response times. When searching for 'ran' 'rand' isn't even on the first page. Im going to retry it with the crates.io-index. This is quite big tho(2.2G). It would be optimal if someone would host a service that strips the unimportant data like dependencies from that file. It can be shrunk down to 14mb(only name & versions) or 74mb(name&versions&features)

EDIT: Automation that strips the data every 15 min

Here's my language server for that: https://github.com/JustFrederik/cargo-dependency-language-server .It only supports crate suggestion and version suggestion. they aren't sorted, bc I don't know how & the version completion does not work properly because the code completion has problems with dots #10777