chore(shared): Changes kiosk/expand/flags/header

- Revamped the flags ui to be consistent with the rest
- The expand setting is on by default now. Tweaks to its dialog and
  header
- Added a new kiosk mode that will use the entire screen for the
  workbench
- Got rid of the auto-hiding behaviour of the header which gets annoying
  quick

sites/shared/components/wrappers/page.mjs

@@ -20,7 +20,7 @@ export const PageWrapper = (props) => {
   /*
    * Deconstruct props
    */
-  const { layout = DefaultLayout, footer = true, header = false, children = [], path = [] } = props
+  const { layout = DefaultLayout, footer = true, header = true, children = [], path = [] } = props
   // Title is typically set in props.t but check props.title too
   const pageTitle = props.t ? props.t : props.title ? props.title : null