Create Header

[prdx]

There are two types of header (App Bar): One before login and one after login.

Both have to have:

• Logo. Logo redirects to home, if not login redirect to the home page, if logged in to the dashboard.
• Search box, to search post, user, etc
• Menu item

Menu item before login differs with menu item after login.
Menu item before login has:

• Login / Signup menu

While menu item after login has:

• Setting menu
• Logout menu

I would like to have a Dashboard button to redirect user to the DashboardPage in the header when the user has logged in.

[prdx]

Related to issue #10