CMB-829: Display sub-title in small header layout

### Issue
In small header, title and sub title should marquee together like a one div.
Buttons in client block should be always left aligned in small header.
Title and client block in a same line. So, title should not go behind the buttons.

### Fix
Make client block position relative, so that text can take width only rest of part.
Give full bleed position as a margin because client is not absolutely positioned.
Address RTL position flipping.

DCO-1.1-Signed-Off-By: Kunmyon Choi kunmyon.choi@lge.com