fix: schematic values with spaces to be wrapped correctly

[etkachev]

Current Behavior

• When generating terminal commands from form controls, values with spaces would be outputted with spaces but not wrapped.
  • Example: field tags with value scope:shared, type:ui would output --tags=scope:shared, type:ui

Expected Behavior

• Values with spaces should be wrapped in single quotes.
  • Example: above example should output --tags='scope:shared, type:ui'