Update bootstrap-table-pt-BR.js (#3837)

Added "All" translation to the  pt-BR language.

dist/locale/bootstrap-table-pt-BR.js

@@ -28,6 +28,9 @@
         formatColumns: function () { 
             return 'Colunas';
         },
+        formatAllRows: function () {
+            return 'Todos';
+        },
         formatPaginationSwitch: function () { 
             return 'Ocultar/Exibir paginação';
         },