This is needed to understand which extension should enable the new port forwarding feature. Only logs that some extension is accessing localhost in a webview, not which port/resource is accessed

#70807

add uri-property to CallHierarchtItem, better wording, better behaviour when switching calls/callers

Fixes #70716
Fixes #70713

Fixes #70415

- Priority can be undefined. Update public api to match this
- We also use an undefined `extensionId`. Update typings for this

- annotate undefined returned types
- Don't call functions with null or undefined values.
- Refactor _convertCompletionItem so that we don't need to mutate the returned object
- Suppress a type error related to electricCharacters.