include Visual Studio Code as alternative editor (Theia remains default) [Dev Spaces 3.2 mid Sept]

1. KIs about missing/migrated/changed functionality:

1a. workaround: Devfile commands translate into VS Code tasks rather than Workspace view [link to VSCode docs]. [stretch-goal] -> https://issues.redhat.com/browse/CRW-3374 To be reworked into and added as an admonition in https://issues.redhat.com/browse/CRW-3373 and in the subsequent release note for the 3.3 release in https://issues.redhat.com/browse/CRW-3420.

1b. tech preview for VS Code editor [must-have] -> https://issues.redhat.com/browse/CRW-3373 in RN and https://github.com/eclipse-che/che-docs/pull/2472 in docs

2. Add Visual Studio Code to the list of available IDEs. [must-have] https://github.com/eclipse-che/che-docs/pull/2472 > Done in https://issues.redhat.com/browse/RHDEVDOCS-4654

3. Document the specific features that are adding value to VS Code: [stretch-goal]

3a. Command -> task. The commands in a devfile translate into a VS Code task. featured as an admonition in https://issues.redhat.com/browse/CRW-3373

3b. Process monitoring plugin (‘port is opened, click to see …’). When a process start listening to a port, display an alert with a link to open the resulting resource. moved to https://issues.redhat.com/browse/RHDEVDOCS-4596

(Don't document regular Visual Studio Code features. Point to VS Code documentation if required.)

See: DS Cabal from July 11.