Dont write empty strings in link

packages/router/src/components/link.rs

@@ -244,14 +244,18 @@ pub fn Link(props: LinkProps) -> Element {
         }
     }
 
-    let tag_target = new_tab.then_some("_blank").unwrap_or_default();
+    let class = if class_.is_empty() {
+        None
+    } else {
+        Some(class_)
+    };
+
+    let tag_target = new_tab.then_some("_blank");
 
     let is_external = matches!(parsed_route, NavigationTarget::External(_));
     let is_router_nav = !is_external && !new_tab;
     let prevent_default = is_router_nav.then_some("onclick").unwrap_or_default();
-    let rel = rel
-        .or_else(|| is_external.then_some("noopener noreferrer".to_string()))
-        .unwrap_or_default();
+    let rel = rel.or_else(|| is_external.then_some("noopener noreferrer".to_string()));
 
     let do_default = onclick.is_none() || !onclick_only;
 
@@ -270,9 +274,9 @@ pub fn Link(props: LinkProps) -> Element {
             onclick: action,
             href,
             prevent_default,
-            class: class_,
+            class,
             rel,
-            target: "{tag_target}",
+            target: tag_target,
             ..attributes,
             {children}
         }