[Differential] [Updated] D4215: Make notifications execute the "default" action on click.

[Aleix Pol Gonzalez]

apol added a reviewer: colomar.

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D4215

EMAIL PREFERENCES
  https://phabricator.kde.org/settings/panel/emailpreferences/

To: albertvaka, #plasma, colomar
Cc: apol, mck182, plasma-devel, lesliezhai, ali-mohamed, jensreuterberg, 
abetts, sebas