Use 5 title buttons on the frontpage

• Add use cases and spotlights to title buttons
• Redefine button size and grid setup
• Add Spotlights and RSD to the software services page
• Rename GitLab service to Software Development Infrastructure
• Link software services page instead of consulting

Review Links

• Front page - 6 Title Buttons
• Software Services Overview

services/software/spotlights.html

@@ -5,5 +5,5 @@ layout: services/default
 author: none
 excerpt: >-
     The Helmholtz Software Spotlights represent top success stories of Reseach Software Engineering in Helmholtz.
-redirect_to: spotlights/
+redirect_to: spotlights
 ---