- updates internal helper _updateArgTypes to handle multiple control config entries at once

+ adds additional util enableToggleFunctionControls

- updates PageHeader story

+ adds PageHeaderContent and PageTempalte stories

- adds type for page directions prop to be reused

- updates enableFunctionToggleControls to overwrite global actions behaviour and set a default for function props

+ add unit tests for enableFunctionToggleControls

… value to true

- updates restrictWidth control to select

= adds additional stories for EuiPageTemplate

- removes skeleton in favor of string to ensure valid HTML

+ adds parent= on bottom bar to ensure last position on DOM updates

Turns out the context needed a parent `{}` reference that updates on prop update, which the `useContext()`+setting child properties directly was messing up. Instantiating a new object value via `useMemo` solves the issue

+ opinionated syntax cleanup while here (use fewer functions - not sure why they needed to be functions??) and destructure more

…cloneElement`

- cleaner and matches existing behavior for other subcomponents

- consumers who render `<EuiPageTemplate><EuiPageSidebar>` will see broken-ish behavior, but they shouldn't be doing this in any case

- not sure how useful this is since `children` is very difficult to memoize on

i'm a senior developer errybody