fix(platform): handle cases when metadata is missing

the card browse component should be tolerent of cases when the metadata is not properly present, and
not attempt to read information about thumbnails. This was causing the nrowse page to crash if one
of the runs did not have all the needed information

apps/platform/src/app/projects/projects.service.ts

@@ -62,15 +62,15 @@ export class ProjectsService {
     const response = this.http.get<SimulationRunMetadata[]>(url).pipe(
       map((projects) => {
         return projects.map((project) => {
-          const thumbnails = project.metadata[0].thumbnails;
+          const thumbnails = project.metadata[0]?.thumbnails || [];
           if (thumbnails.length == 0) {
             thumbnails.push(
               './assets/images/default-resource-images/model.svg',
             );
           }
           return {
             id: project.id,
-            title: project.metadata[0].title || project.id,
+            title: project.metadata[0]?.title || project.id,
             thumbnails: thumbnails,
           };
         });