Cody: Fix useContext none setting and add type for winkJS

[abeatrix]

Close: #52125

This PR includes a fix to #52125 where setting cody.useContext to none works the same as setting it to blend or embeddings.

• This fix should also help users who run into issues with local keyword fetcher as mentioned in Ripgrep search can be very slow and cause unresponsiveness #51631 that cause their machine to freeze in large repos, where now they can just turn off keyword search by setting it to none

Also add types for WinkJS and data returned by ripgrep to get rid of the eslint errors that have been bothering me 😅

Test plan

Set cody.useContext to none to confirm no context is included for Cody except the currently opened file:

[sourcegraph-buildkite]

Bundle size report 📦

Initial size	Total size	Async size	Modules
0.00% (0.00 kb)	-0.00% (-0.04 kb)	-0.00% (-0.04 kb)	0.00% (0)

Look at the Statoscope report for a full comparison between the commits e5ef769 and 97910a6 or learn more.

Open explanation

• Initial size is the size of the initial bundle (the one that is loaded when you open the page)
• Total size is the size of the initial bundle + all the async loaded chunks
• Async size is the size of all the async loaded chunks
• Modules is the number of modules in the initial bundle

[sourcegraph-bot]

📖 Storybook live preview

[jtibshirani]

Makes sense to me!