Feature/optimize import validation by reducing to unique asset profiles (#2198)

* Optimize activities validation

* Optimize data gathering in import

* Update changelog

libs/common/src/lib/helper.ts

@@ -5,7 +5,7 @@ import { getDate, getMonth, getYear, parse, subDays } from 'date-fns';
 import { de, es, fr, it, nl, pt } from 'date-fns/locale';
 
 import { ghostfolioScraperApiSymbolPrefix, locale } from './config';
-import { Benchmark } from './interfaces';
+import { Benchmark, UniqueAsset } from './interfaces';
 import { ColorScheme } from './types';
 
 const NUMERIC_REGEXP = /[-]{0,1}[\d]*[.,]{0,1}[\d]+/g;
@@ -64,6 +64,10 @@ export function extractNumberFromString(aString: string): number {
   }
 }
 
+export function getAssetProfileIdentifier({ dataSource, symbol }: UniqueAsset) {
+  return `${dataSource}-${symbol}`;
+}
+
 export function getBackgroundColor(aColorScheme: ColorScheme) {
   return getCssVariable(
     aColorScheme === 'DARK' ||