When the typing break screen is displayed and break postponements are enabled,
there is a 500ms delay before the 'Postpone' button becomes sensitive.
Increase that delay to 5000ms (5s).
Rationale:
When I'm really focused on something I will click the 'Postpone' button, or
even use the keyboard short-cut Alt-P, so that I can carry on with what I was
doing. Then later I won't even remember having done it. This can happen
several times in a row. I'm sure it happens this way for other people too.
With a 5s delay before a break can be postponed it gives the user time to think
about whether they really need to carry on with what they were doing or if it
can wait after all.
Closes bug #597086.
1fd84f3672
