Technical finetuning and project fact sheet pages overview incl. search (Main Issue)

• Auto-Scroll up (fix: Button) #54 (closed)
• Automatic Release year in footer (2024 ongoing) #56 (closed)
• collapsible headings for FAQ (feat: collapsible markdown heading) #55 (closed)
• Website Caching (fix: reduced load time for website and menue) #58 (closed)
• Overview Page with search and filters (breaking feat?: overview page with cards and filters from templates for project locations) #57 (closed)
• KvM API features? #59 (closed)