Filter out sectors with zero weight

apps/api/src/services/data-provider/data-enhancer/yahoo-finance/yahoo-finance.service.ts

@@ -218,15 +218,17 @@ export class YahooFinanceDataEnhancerService implements DataEnhancerInterface {
               };
             }) ?? [];
 
-        response.sectors = (
+        response.sectors = (assetProfile.topHoldings?.sectorWeightings ?? [])
-          assetProfile.topHoldings?.sectorWeightings ?? []
+          .flatMap((sectorWeighting) => {
-        ).flatMap((sectorWeighting) => {
             return Object.entries(sectorWeighting).map(([sector, weight]) => {
               return {
                 name: this.parseSector(sector),
                 weight: weight as number
               };
             });
+          })
+          .filter(({ weight }) => {
+            return weight > 0;
           });
       } else if (
         assetSubClass === 'STOCK' &&