fix: update icon for forked repository links

Replaced "code-fork" icon with "git-branch" icon to better reflect the concept of repository branches and forks. This change improves clarity and visual consistency in the interface.

templates/index.html

@@ -64,7 +64,7 @@
                 class="bs-icon-sm bs-icon-circle bs-icon-primary shadow d-flex flex-shrink-0 justify-content-center align-items-center d-inline-block bs-icon bs-icon-sm fork"
                 title="Runs on a fork of the original software"
               >
-                {{ "code-fork" | icon | safe }}
+                {{ "git-branch" | icon | safe }}
               </div>
             </a>
             {% endif %}