Code review comment for lp:~widelands-dev/widelands/toolbar-dropdown-menus

The reason that the test failed was because there is a UI test that depends on "buildhelp" to be a button, which is a menu entry now. I have changed it to use "help" instead, which is the button for opening the Encyclopedia.

The second failure was that in debug builds, the main menu has 1 additional entry on top (the Lua console). So, I am now counting he entries in the test to decide which is the correct item index.