chore(showcase):Add vaktija.eu to showcase (#21817)

Co-authored-by: GatsbyJS Bot <mathews.kyle+gatsbybot@gmail.com>

docs/sites.yml

@@ -9986,3 +9986,17 @@
     - Marketing
   built_by: Corey Ward
   built_by_url: "http://www.coreyward.me/"
+- title: Vaktija.eu
+  url: https://vaktija.eu
+  main_url: https://vaktija.eu
+  description: >
+    Vaktija.eu gives information about prayer times in germany. (Built with GatsbyJS. Fast in every way that matters.)
+  categories:
+    - App
+    - Community
+    - Nonprofit
+    - SEO
+    - Web Development
+  built_by: Rašid Redžić
+  built_by_url: https://rasidre.com/
+  featured: false