Bug 829078 - [email] adjust and remove some styles in *.css of email

Conflicts:
	apps/email/style/compose-cards.css
	apps/email/style/custom_dialog.css
Bug 844995 - Setting up new email account screen updates
Bug 844973 - New Account Screen - Layout and Type updates
Bug 845048 - Email screen type and layout updates

Conflicts:
	apps/email/style/message-cards.css
Bug 845042 - Load more messages layout and type update
Bug 844978 - Email Manual Setup Layout and Type updates
Merge pull request #8703 from samjoch/email-app

Ux email app bugs left