feat: Adds alternative link to service entry

Enhances the existing service entry by including an
alternative link to the source code repository, providing
users with access to the project's development resources.

This improves transparency and enables contributions from
the community.

data/services.json

@@ -22,7 +22,13 @@
                 },
                 {
                     "name": "Go to Element",
-                    "url": "https://element.private.coffee"
+                    "url": "https://element.private.coffee",
+                    "alternatives": [
+                        {
+                            "name": "Fork Source Code",
+                            "url": "https://git.private.coffee/PrivateCoffee/element-web"
+                        }
+                    ]
                 },
                 {
                     "name": "Go to Hydrogen",