Moved Menu and Quit assignments to Misc

- Moved options for mapping a keyboard or joystick button for Config and
Quit to the Misc page, since there was not enough room in the Input
page.
- Cleaned up the code to use variables for positioning those UI elements
instead of hardcoded sizes.
- Re-aligned the Scroll and Num Lock LED assignments to harmonize the
look of the UI.

.gitignore

@@ -22,3 +22,4 @@ kickstarts/*.rom
 *.dat
 Amiberry/VisualGDB/Debug/Amiberry
 Amiberry/VisualGDB/Release/Amiberry
+*.sqlite