Fix display of assets without currency

libs/ui/src/lib/assistant/assistant-list-item/assistant-list-item.html

@@ -8,7 +8,10 @@
   @if (item && isAsset(item)) {
     <br />
     <small class="text-muted"
-      >{{ item?.symbol ?? '' | gfSymbol }} · {{ item?.currency }}
+      >{{ item?.symbol ?? '' | gfSymbol }}
+      @if (item.currency) {
+        · {{ item.currency }}
+      }
       @if (item?.assetSubClassString) {
         · {{ item.assetSubClassString }}
       }

libs/ui/src/lib/symbol-autocomplete/symbol-autocomplete.component.html

@@ -25,7 +25,10 @@
           }
         </span>
         <small class="text-muted"
-          >{{ lookupItem.symbol | gfSymbol }} · {{ lookupItem.currency }}
+          >{{ lookupItem.symbol | gfSymbol }}
+          @if (lookupItem.currency) {
+            · {{ lookupItem.currency }}
+          }
           @if (lookupItem.assetSubClass) {
             · {{ lookupItem.assetSubClassString }}
           }