toQueryItem

Converts to a query item:

  • debugMode → "debug" = "1"/"0"

  • kioskMode → "kiosk" = "1"/"0"

  • serviceWorker → "sw" = "1"/"0"

  • other booleans → "true"/"false"

  • value-less flags (agenda/language/setkiosk/bookmarks/searchText) use null value