Eeschema: fix missing global label dangling indicators

eeschema/sch_label.cpp

@@ -1919,8 +1919,8 @@ bool SCH_GLOBALLABEL::ResolveTextVar( const SCH_SHEET_PATH* aPath, wxString* tok
 
 std::vector<int> SCH_GLOBALLABEL::ViewGetLayers() const
 {
-    return { LAYER_GLOBLABEL,     LAYER_DEVICE, LAYER_INTERSHEET_REFS,
-             LAYER_NETCLASS_REFS, LAYER_FIELDS, LAYER_SELECTION_SHADOWS };
+    return { LAYER_DANGLING,      LAYER_GLOBLABEL, LAYER_DEVICE,           LAYER_INTERSHEET_REFS,
+             LAYER_NETCLASS_REFS, LAYER_FIELDS,    LAYER_SELECTION_SHADOWS };
 }