Missing context keys from the when clause contexts page

[racz16]

The following context keys are missing from the when clause contexts page, but are mentioned in other pages:

• virtualWorkspace (Virtual Workspaces, Web Extensions)
• shellExecutionSupported (Web Extensions, Task Provider)
• processExecutionSupported (Task Provider)
• customExecutionSupported (Task Provider)
• isWorkspaceTrusted (Workspace Trust)
• webviewSection (Webview)
• scmProvider (Source Control)
• scmResourceGroup (Source Control)
• originalResourceScheme (Source Control)
• testId (Testing)
• controllerId (Testing)
• testItemHasUri (Testing)

[DakotaB75]

Hi! I can take this one.

I’ll update the when clause contexts reference to include the missing context keys listed here, aligning descriptions with their existing mentions across the docs (Tasks, Web Extensions, SCM, Testing, Workspace Trust).

I’ll keep the change scoped to documentation only and avoid behavioral assumptions.

I’ll open a PR shortly.