[ui] error-proofing table formatters

ui/src/components/widgets/Table.svelte

@@ -176,15 +176,17 @@
     return ATTRIBUTE_LABELS[attribute];
   }
 
-  function formatValue(
-    value: string | number,
-    attribute: string
-  ): string | undefined {
+  function formatValue(value: string | number, attribute: string): string {
     const handler = VALUE_FORMATTERS[attribute];
     if (handler) {
+      try {
       return handler(value);
+      } catch (error) {
+        console.warn(`Error while formatting "${value}": ${error}`);
     }
   }
+    return String(value);
+  }
 
   // Optimizations
   let resolve = [];