qt: do not format position tick as duration
It does not make sense to format position tick as if it represents a duration. There is high precision time widget for showing the precise position, which can be used if there is a need to see the precise position.
This behavior also causes issues. For example, the position text's width greatly varies between < 00:01 and > 00:01 which affects the seek bar handle position. I tried to record this:
Request review @chub.
Edited by Fatih Uzunoğlu