fix input type text - disabled when true

src/elements/input/element_textbox.erl

@@ -35,8 +35,8 @@ render_element(Record) ->
     
     {<<"class">>, Record#textbox.class} | Record#textbox.data_fields
   ] ++ case Record#textbox.disabled of
-    [] -> [];
-    _ -> [{<<"disabled">>, <<"disabled">>}]
+    true -> [{<<"disabled">>, <<"disabled">>}];
+    _ -> []
   end,
   
   wf_tags:emit_tag(<<"input">>, nitro:render(Record#textbox.body), List).