* Return splitted instance from ITerminalService::splitInstance

* Add support for terminalGroup to tasks

* Early-exit when the tab could not be split

https://github.com/Microsoft/vscode/pull/65973/files/42e3171a71ae4b6963e47318fd289a66eb48a96a#r245762395

* Use .get()! instead of the unsupported [] to access LinkedMap

* Move api changes into `vscode.proposed.d.ts`

* Rename "terminalGroup" to "group"

* Only keep references to terminals in sameTaskTerminals and idleTaskTerminals if the terminal is not disposed

* Type result variable

Fixes #47265

Add xterm mouseleave to dismiss widget

Fixes #65415

Print a message before installing dependencies in npm post install

#62110
https://github.com/Microsoft/TypeScript/issues/29450

#67027

* Add active folder feature

* use urilabel instead

* use resource instead of path

* show empty instead for activeFolderShort

related to #66904