Fix form submission fields
Submitting one form may lead to any other filled forms to be also submitted. This commit fixes this flaw
(diag > command prompt) page styling
Swap the colors on Diag > Command back. Executing is dangerous, hence the warning.
Changed the button colors and icons. The fa-terminal wasn't doing it for me :)
Fix typo
Bring some consistency to the way most buttons are displayed (color, icons, etc). Ticket #5965
Still need to review Advanced buttons and Repeatable block buttons.
Renamed exec.php and edit.php