Make Design Library a primary action (jenkinsci#431)

Author: janfaracik

pom.xml

@@ -60,7 +60,7 @@ THE SOFTWARE.
     <gitHubRepo>jenkinsci/design-library-plugin</gitHubRepo>
     <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
     <jenkins.baseline>2.479</jenkins.baseline>
-    <jenkins.version>2.507</jenkins.version>
+    <jenkins.version>2.516</jenkins.version>
     <node.version>22.15.0</node.version>
     <npm.version>11.4.2</npm.version>
     <spotless.check.skip>false</spotless.check.skip>

src/main/java/io/jenkins/plugins/designlibrary/Home.java

@@ -27,6 +27,11 @@ public String getUrlName() {
         return "design-library";
     }
 
+    @Override
+    public boolean isPrimaryAction() {
+        return true;
+    }
+
     public List<UISample> getAll() {
         return UISample.getAll();
     }