Fix: Fix result detection for imported reports

When importing reports, the "detected_at" report host details generated
from result detection details now use the VT ID of the result.
This makes it so the result detection now works correctly in the
imported reports.

src/gmp.c

@@ -18095,8 +18095,7 @@ gmp_xml_handle_result ()
  detail->ip = g_strdup (result->host);
  detail->name = g_strdup ("detected_at");
  detail->source_desc = g_strdup ("create_report_import");
- detail->source_name = g_strdup (
- detection->source_oid); // verify when detected_at || detected_by
+ detail->source_name = g_strdup (result->nvt_oid);
  detail->source_type = g_strdup ("create_report_import");
  detail->value = g_strdup (detection->location);
  array_add (create_report_data->details, detail);