Feature/improve premium data provider handling in getQuotes() (#4590)

* Improve premium data provider handling in getQuotes()

apps/api/src/services/data-provider/data-provider.service.ts

@@ -18,6 +18,7 @@ import {
   DATE_FORMAT,
   getCurrencyFromSymbol,
   getStartOfUtcDate,
+  isCurrency,
   isDerivedCurrency
 } from '@ghostfolio/common/helper';
 import {
@@ -468,17 +469,21 @@ export class DataProviderService {
     )) {
       const dataProvider = this.getDataProvider(DataSource[dataSource]);
 
-      if (
+      const symbols = assetProfileIdentifiers
+        .filter(({ symbol }) => {
+          if (isCurrency(getCurrencyFromSymbol(symbol))) {
+            // Keep non-derived currencies
+            return !isDerivedCurrency(getCurrencyFromSymbol(symbol));
+          } else if (
             dataProvider.getDataProviderInfo().isPremium &&
             this.configurationService.get('ENABLE_FEATURE_SUBSCRIPTION') &&
             user?.subscription.type === 'Basic'
           ) {
-        continue;
+            // Skip symbols of Premium data providers for users without subscription
+            return false;
           }
 
-      const symbols = assetProfileIdentifiers
-        .filter(({ symbol }) => {
-          return !isDerivedCurrency(getCurrencyFromSymbol(symbol));
+          return true;
         })
         .map(({ symbol }) => {
           return symbol;