For #271167
This makes it so our built-in extensions can mostly be built using `tsc` on the command line. Previously the extensions were picking up a lot of typing info from the root `node_modules` that meant they weren't truly independent
Affects #139247
This PR changes Emmet to use inline completions when suggesting completions.
It also provides a boolean setting so that users can opt out.
This PR does not change the "Wrap with Abbreviation" behaviour in Emmet.
Co-authored-by: Henning Dieterichs <notify.henning.dieterichs@live.de>