[orca-list] Default behavior for quick key toggling of focus mode is changed

[Joanmarie Diggs <jdiggs igalia com>]

Hey all.

Thanks for the feedback. It appears we have a consensus. (Yay!) As a
result, the behavior is now as follows:

* Pressing keys like "e" to move to the next entry will not auto-trigger
  focus mode by default. You can now press "e" until the cows come home.
  When you finally reach the entry you wish to fill out, press Orca + a
  to toggle into focus mode.

* If you do not like the above default, you can still configure it via
  orca-customizations.py (now) and via GUI (very soon, probably Monday).

* Using the "list of" dialogs like Alt + Shift + e will trigger focus
  mode automatically.

* Using other means to change focus to a form field, such as Tab, Mouse
  Click, Web App mnemonics, etc. will trigger focus mode automatically.

* Using Orca's caret navigation commands to arrow into a form field will
  not, by default, trigger focus mode. But this is also configurable --
  and has nothing to do with the quick-key ("e") setting.

I think that covers everything. Please let me know if you have any
questions.

Thanks again for all your testing and feedback on this and on the other
new features and fixes! Orca 3.14 is starting to shape up quite nicely I
think.

--joanie