Hidden workspace fix, date picker improvements, and CLI updates

This release fixes several issues including hidden workspace visibility, date picker calendar display, and improves CLI configuration handling.

• Removes a TypeScript limitation that prevented plugins from cleanly adding custom document actions.
• cli: init respects --project and --dataset flags for app templates.
• cli: pass schemaExtraction config through to build.
• cli: sanity init now defaults to TypeScript in unattended mode.
• cli: replace preferred-pm with local implementation.
• Fixes a regression where workspace hidden config was ignored, causing hidden workspaces to appear.
• Include version in document events observable.
• Fixed the date picker calendar display after using “Set to current time”.