Feature/cfos 36 Header menu

[vidhya-metacell]

@enicolasgomez thesw two points iu couldn't figure out how to pass in the menu object from gepetto

1. Check mark on left of the selected option in figma is different as compared to font awesome
2. Check mark in purple on right of the option selected, i couldn't figure out how to add
   attaching screenshots of these points

[afonsobspinto]

@enicolasgomez, @vidhya-metacell reached out to me with the aforementioned questions so I took some time to add a (workaround) example to the geppetto-showcase here. I hope it helps