Desktop Side Nav: Color and spacing issues

[chrislueders]

In the desktop sidenav component, we have following issues, that need to be fixed:

• Typo: If we change the state of the Desktop side nav item there is no toggle, because the name of the active property state should be "true" instead of "tue"
• If we change the state from active-false to active-true -> the icon doesn't change the color automatically
• If we change the state from active-false to active-true -> the spacing between the icon and label changes