chore: roadmap selection

src/components/RoadCard/RoadmapSelect.tsx

@@ -70,6 +70,7 @@ export function RoadmapSelect({
         options={options}
         onChange={onChange}
         value={selectedRoadmaps}
+        placeholder="Select roadmaps"
         unstyled
         styles={{
           input: (base) => ({

src/helper/get-badge-link.ts

@@ -20,8 +20,7 @@ export function getBadgeLink({
   if (variant) {
     badgeUrl.searchParams.set('variant', variant);
   }
-  const isRoadmapArray = roadmaps && Array.isArray(roadmaps) && roadmaps.length;
-  if (isRoadmapArray) {
+  if (roadmaps?.length) {
     badgeUrl.searchParams.set(
       'roadmaps',
       roadmaps.map(({ value }) => value).join(',')