Add example timers

[Myzel394]

This PR adds example quick selection timers to the CreateTimerScreen

This allows users to quickly select from common timers, such as 10 minutes, 15 minutes, half an hour, an hour etc.

out.mp4

[Bnyro]

Thanks for the PR!
I generally like the idea of these changes, however I think that they do not really fit there in terms of their position in the UI. They look very squeezed there at the bottom.
I think we should either place them above or below the current content (number pad + start button).
Hence the size of the number pad buttons should be reduced as well.

[Myzel394]

[Bnyro]

In my opinion, we can remove the :00 at the end of each example timer, because it should be self-explaining that 1s timers don't make any sense.
Otherwise lgtm!

[Myzel394]

In my opinion, we can remove the :00 at the end of each example timer, because it should be self-explaining that 1s timers don't make any sense.

1s doesn't make sense but 30s would make sense for example. I think most people would interpret "01:00" as one minute and not as one hour

[Bnyro]

Agreed, it makes more sense to remove the 00: at the beginning for anything below one hour.

[Myzel394]

I'd prefer to keep them also as this makes all timers the same width and thus easier for eyes to read as one can immediately jump to the minutes and hours parts

[Bnyro]

In my opinion that's just wasted space, your screenshot could contain 4 timers instead of the current 3 when removing the 00: at the beginning.

[Myzel394]

done

[Bnyro]

Thanks!