fix: if yahoo service returns zero quotes do not fail enhance request

Signed-off-by: Anatoly Popov <me@aensidhe.ru>

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

@@ -105,6 +105,9 @@ export class YahooFinanceDataEnhancerService implements DataEnhancerInterface {
         yahooSymbol = symbol;
       } else {
         const { quotes } = await this.yahooFinance.search(response.isin);
+        if (quotes.length === 0) {
+          return response;
+        }
         yahooSymbol = quotes[0].symbol as string;
       }