CSV: Default to the german default list separator

Maybe we can find a way to auto detect this, but for now default to german

packages/data-table-view/src/vpu-data-table-view.js

@@ -103,7 +103,8 @@ class DataTableView extends LitElement {
                     filename: this.exportName,
                     className: 'button is-small',
                     charset: 'UTF-8',
-                    bom: true
+                    bom: true,
+                    fieldSeparator: ';'
                 },
                 {
                     extend: 'excelHtml5',