Admin Bar Fix

修正工具列上太多項目會影響版面配置的問題，並從工具列移除不受歡迎的上邊界及隱藏不需要的項目。

• fix multiline admin bar
• remove 32px margin inserted by WordPress
• hide admin bar for any user role
• hide admin bar on smaller screens
• hide admin bar items that you do not need
• select from 3 admin bar styles:
  1. ghost – set lower opacity and smaller height and expand it on hover
  2. vertical – show admin bar as icons in a vertical panel and expand it on hover
  3. icon – hide admin bar into a single small icon and expand it on hover
  4. bottom – move admin bar to the bottom of your screen, you can also set similar things like in the ghost style
• settings:
  • Position
  • Inactive opacity
  • Inactive size
  • Animation duration
  • Mouse enter delay
  • Mouse leave delay