Header has now an image which rescale accordinly to its html panel
parent.
Better organization of the HTML structure (header and main with
inherited properties from the parent div and good size)
Add license MIT
Add mail and langages icons in header for desktop (no actions yet)
WIP building the menu bar for desktop
Add split button to widgets
Resize icons
Add missing icons in menu
Update one font size for mail
Renome Tablet to Mobile
End rename Tablet to Mobile
Menu done for mobile view
Update css rule for logo
Add viewport property in meta and css to adapt view in mobile
Add translation action