Fixes https://github.com/microsoft/vscode/issues/108806

This is a little weird. onDidFocus is based on a focus tracker,
but the focus() method is called when the terminal is actually expected
to take focus.
Fix #109538

Fixes #108310.

also fixes https://github.com/microsoft/vscode/issues/109464

Fixes #103454

Co-authored-by: NJoão Moreno <joao.moreno@microsoft.com>
Co-authored-by: NMegan Rogge <megan.rogge@microsoft.com>

Fixes #109445

Fixes https://github.com/microsoft/vscode-internalbacklog/issues/1561

fix #108673 Put FileSystemProvider error message into settings.json create-failure notification

Fixes #107278

Fixes #109459