Support inlay hint double click gesture

[jrieken]

We should support the double click gesture on inlay hints and connect it with some "primary command". That would allow for nice interactions like making the corresponding code change when clicking etc

[jrieken]

This happened. With vsocde.InlayHint.command the default (dbl-click) gesture can be set

[jrieken]

To verify

• use the sample https://github.com/jrieken/test-inlayhints/
• run npm i
• press F5 to debug
• open a markdown file, type "foo" and "bar", both words will be decorated with an inlay hints
• ensure you can dbl-click the hints and see a notification

[isidorn]

Works nicely -> verified. Filled follow up issue #143740

[jrieken]

Re-opening after further discussion (#143740 and related). The current API allows to give a command for the hint as well as for hint label parts. Tho, the former command is meant to be a "accept" command and we should model the API accordingly. That would allow us to show specific UI, like "double click to accpet"

[jrieken]

API idea

export class InlayHint {

  // optional edit that is performed when the default gesture is triggered
  textEdits?: TextEdit[];
}

[jrieken]

To verify

• review/read this comment

---

• use the sample jrieken/test-inlayhints
• run npm i and npm run compile
• press F5 to debug
• open a markdown file, type "foo" and "bar", both words will be decorated with an inlay hints
• ensure you can dbl-click the hints and that you see line 1 being changed
• ensure you get a hover about dbl-click when hovering over the hints