This uses all workspaces as terminals are somewhat divorced from
workspaces with their initial cwd. Because of this I suspect it could
get more confusing in multi-root workspaces if we tried to be clever and
only search a single workspace.

Fixes #95119

Inside workspace will focus in explorer, outside workspace will for open
a new window (forced new)

Fixes #29499

Currently when a cell is trimmed due to a wide char wrapping isn't
covered

Fixes #94011

Fixes #94011

Ideally there would be an integration test as well but currently it's not
possible as there's no extension API to activate links within the terminal

Part of #92646

Part of #91606

Fixes #83293

Fixes #74955

Fixes #76175

Part of #78168