On ti89, the overlay menu shouldn't be opened with the ON key

[nbondoux]

Hi,
On ti89, the overlay menu shouldn't be opened with the ON key, as the ON key is a break key, to be used to ask the OS to interrupt computations.

"The ́ key is tied to a high level interrupt (level 6), and is used on the
calculator as a “break” key to allow the user to interrupt the current flow of
activity. This call returns true and clears all pending keys from the key
queue if the ́ key has been pressed at least once since the last call to
OSClearBreak." (from the ti SDK documentation)

[eanema]

I agree. Back when I was still in school and I did a lot more work/programming on my ti89, I found it was really quite a useful way to break a process. My involvement in the development of this project is minimal - I just wanted it to run on my new phone and it took me about a year to get around to it. But I really have no time to devote to this project. But if you have the time, I would suggest that add a line to the overlay menu titled 'send break' it would probably be the quickest/easiest way to get.the functionality you want. However you decide to fix it, if you submit a reasonable merge request, I can merge it into.this repo