use semicolon as delimiter

src/core/marketplace.cpp

@@ -173,7 +173,7 @@ void Marketplace::setSalesToDelete(int cashPointNo)
 
 void Marketplace::exportReportToCSV(const fs::path& filePath, int feeInPercent, int maxFeeInEuro)
 {
-    const char delimiter = ',';
+    const char delimiter = ';';
     std::ofstream file(filePath);
 
     file << "Verk.Nr." << delimiter << "Nachname" << delimiter << "Vorname" << delimiter