mobile: not smooth scrolling from dive-detail to dive-detail

[Jan Mulder]

As has been noticed by a number of people that are active in the android 
mobile development, the scrolling/swiping from dive-detail to 
dive-detail is not "smooth". It stops and moves forward at (lets say) 
80% of the width of the profile window, and up to now it is unclear if 
it is a QML/Qt thing or something in our code.

I noticed something, that I have not heard before. It seems that the 
scroll/swipe is very responsive as long a the swipe is active (the 
finger stays on the display). At the moment the swipe is ended, the 
dive-detail is "snapping into place" at a speeds that is much lower that 
the regular swipe by the user. Typically, the user does not swipe from 
exact edge of the screen to the opposite side, so only (lets say) 80% of 
the device width of covered by the swipe operation.

This is very different from the (vertical) swipe trough the divelist. 
There, a short but fast swipe scrolls you a long way through the 
divelist. Here, the speed does matter, but when swiping from dive-detail 
to dive-detail, the speed does not seem to matter at all. It switches to 
a "slow snap in place" speed that confuses the user.

Obviously, I looked in QML docs, and tried some small code changes, but 
no visual effect.

best,

--jan