implementation of design changes proposed in https://mantis.phplist.com/view.php?id=17449
Merge pull request #2 from mariez/master

#17449 - implementation of proposed design changes
remove comment
fix empty checkbox in list selection to send a campaing
Merge pull request #3 from mariez/master

fix empty checkbox in list selection to send a campaing
puting back bg image of tabs container
Merge pull request #4 from mariez/master

puting back bg image of tabs container
reminify
reminify
Merge pull request #2 from mariez/master

#17449 - implementation of proposed design changes (reverse-merged from commit b264902b299137a90a64902ee6eac8b8a6a875a6)
reminify
change all fonts to Arial and remove smallCaps
change all fonts to Arial
Merge pull request #5 from mariez/master

font change
styling only LIST tab in SEND page
Merge pull request #6 from mariez/master

styling only LIST tab in SEND page