Fix JavaScript runtime errors for undefined name property access

- Add null checks to prevent "Cannot read properties of undefined (reading 'name')" errors
- Fix ProjectCard, MembersList, ProjectsView, DiscoverView, ProjectViewView components
- Add null validation in DIDView.claimDescription() and ClaimReportCertificateView.drawCanvas()
- Add missing databaseUtil import in MembersList component
- Use meaningful fallback text for undefined names ("Unnamed Project", "Unnamed Member")
- Resolves template rendering crashes when entities lack name properties

src/components/InfiniteScroll.vue

@@ -60,17 +60,21 @@ export default class InfiniteScroll extends Vue {
    * Used internally by Vue's lifecycle system
    */
   updated() {
-    if (!this.observer) {
-      const options = {
-        root: null,
-        rootMargin: `0px 0px ${this.distance}px 0px`,
-        threshold: 1.0,
-      };
-      this.observer = new IntersectionObserver(
-        this.handleIntersection,
-        options,
-      );
-      this.observer.observe(this.$refs.sentinel as HTMLElement);
+    if (!this.observer && this.$refs.sentinel) {
+      const sentinelElement = this.$refs.sentinel as HTMLElement;
+      // Ensure we have a valid HTMLElement before observing
+      if (sentinelElement instanceof HTMLElement) {
+        const options = {
+          root: null,
+          rootMargin: `0px 0px ${this.distance}px 0px`,
+          threshold: 1.0,
+        };
+        this.observer = new IntersectionObserver(
+          this.handleIntersection,
+          options,
+        );
+        this.observer.observe(sentinelElement);
+      }
     }
   }