Adding some more codehints for flex-* properties
Maintain scroll position for each ExtensionManager tab
Removing newlines
Merge pull request #6637 from SAPlayer/fix-5923

Fix for #5923: Maintain scroll position for each ExtensionManager tab
Removing initial from flex-basis
Merge pull request #6584 from SAPlayer/flex-csscodehints

Adding some more codehints for flex-* properties