App name and window icons are overlapped with indicator when with maximized window

[Evan Wang]

$ system-image-cli -i
current build number: 75
device name: mako
channel: ubuntu-touch/rc-proposed/ubuntu-pd
last update: 2015-11-24 05:39:02
version version: 75
version ubuntu: 20151124
version device: 20150911
version custom: 20150929-2-vivid

Steps to reproduce:
1. Windowed mode is enabled with BT mouse connected
2. Open System Settings page or any app with maximized window
3. Check the indicator icons line and swipe down indicator menu

Actual results:
If the app opened with a longer name, it's overlapped with indicator icons, and window icons and app name are still be shown when indicator menu is opened.