Error 1: When enabling/disabling easy corner, the enable/disable text
was mixed up. This resulted in being asked to confirm disabling easy
corner, when it was being enabled, and vice versa.
Error 2: When choosing not to switch easy corner, the checkmark in the
menu showing it's state still swapped.
Fix 1: Swap the text for enable/disable in the confirm easy mode toggle
dialog box.
Fix 2: Call GetMenuBar()->Check(bombsID_EASYCORNER, m_easyCorner);
(Check always returns void, and GetMenuBar is only called from the
MenuBar, after it's been set up) to set the checkmark's state, when
needed.
Closes#22764.
e7521d7b2c