fix: dont output null age

src/lib/components/ui/markdown/carta.pcss

@@ -89,7 +89,7 @@
 }
 
 .carta-theme__default .carta-icons-menu {
-  @apply border border-solid border-base-content/30;
+  @apply border border-solid border-base-content/30 bg-base-100;
   padding: 6px;
   border-radius: 6px;
   min-width: 180px;

src/lib/shared/util/util.ts

@@ -102,7 +102,9 @@ export function sanitizeHtml(s: string): string {
 }
 
 export function formatPatientName(patient: RouterOutput["patient"]["list"]["items"][0]): string {
-  return `${patient.first_name} ${patient.last_name} (${patient.age})`;
+  let res = `${patient.first_name} ${patient.last_name}`;
+  if (patient.age) res += ` (${patient.age})`;
+  return res;
 }
 
 export function divFloor(a: number, b: number): number {