feat(appToolbar): show 32x32 app icons in toolbar and active/inactive
indicator bar

* increase size of icons in app toolbar to 32x32
* do not display app names in toolbar
* add tooltip to show app name
* change active/inactive indicator to a blue bar beneath the app icon
* change paging icons to double arrows
* modify mergeApplicationData function to give frames access to both
* small and large icons

Closes #287