Seconds count down in OSD broken

[danielk]

In the TV::ShowOSDAskAllow() dialog that show the user the number of seconds until an action is taken "%d" is printed instead of the number of seconds remaining.

[stuartm]

We should really replace that countdown string with tr + %n but it means re-factoring this code to make that possible. For tr() to work you really need to translate and substitute the integer in one go.

e.g.

tr("%n second(s)", NULL, secs);

[markk]

(In [26070]) Fix the update and translation of the 'pulsed' OSD text used in the countdown timer.

This is not yet fully fixed. The translation should work correctly and the initial update is working again but further updates are not happening for some reason. Refs #8803.

[markk]

(In [26071]) Properly fix the OSD seconds countdown. Closes #8803