Make all screens look and feel the same

[Dantali0n]

The following screens need to have the same look and feel.

• Add -> Add user
• Delete -> Delete flight
• Details -> Customer Details
• Search -> Search Luggage

This is everyone his job make it so: @mich23646 @geoffreyvd @RichieNL @KonradLL

[Dantali0n]

Add searchpanes to each searchfield on the rightside of screens and I consider this done.