ArrayDataSource: update sorting (#1117)

SORT_LOCALE_STRING - compare items as strings, based on the current locale. It uses the locale, which can be changed using setlocale()

src/DataSource/ArrayDataSource.php

@@ -124,9 +124,9 @@ public function sort(Sorting $sorting): IDataSource
 			}
 
 			if ($order === 'ASC') {
-				ksort($data);
+				ksort($data, SORT_LOCALE_STRING);
 			} else {
-				krsort($data);
+				krsort($data, SORT_LOCALE_STRING);
 			}
 
 			$dataSource = [];