minor cleanup in the program box code

- always reset the eeprom suboption to the "instructions" option when paging into the eeprom page. this will avoid the case where the user

1. navigated to say "erase cfg" then
2. left arrow to other menu pages then
3. right arrow (WITH auto repeat) to and through the eeprom page.

the "erase cfg" will get executed since it is the last selected option in the eeprom page.

the fix is to always reset back to the instructions option whenever we page into the eeprom page. then only up and down are allowed to continue.