Fixes https://github.com/microsoft/vscode/issues/8735

Add active activity border and background colors

Fixes #47505

Fixed the problem of overwriting many characters in suggestion

Fixes #63841

Fixes #59023

Part of #80375

Fixes #81777

to prevent 'stale' prelaunch task results

Fixes #82076

Fixes #49693: Disable column selection with middle mouse button if selection clipboard is enabled on Linux

Fixes https://github.com/microsoft/vscode/issues/78398

This reverts commit 11f24f64.

Fixes https://github.com/microsoft/vscode/issues/67578

Fixes #82286

this function is no longer being used

Adds a basic `Lazy<T>` helper for representing a lazily created value. This is similar to `IdleValue<T>`, except that it does not resolve the value on idle.

`Lazy` is useful for defining UI elements that are potentially expensive to create but are not required right away. The code action code has been updated to use it for this purpose

This matchs the naming of a few other services we have