Auto scrolling is improved

[praya]

this merge resolves this issue:
#242

[praya]

@clauderic what do you think about this changes?

[praya]

Is anybody here?

[clauderic]

Released in 1.54, thanks!

[praya]

Thank you!)

[pedrommarquesm]

This somehow got lost in earlier versions. wasn't this mistakenly not frontported to new versions?
The original issue is still reproducible
In version 2.0.0, I found out that whenever a element higher in the DOM has overflow: auto, it breaks the normal behavior.
codesandbox:
https://codesandbox.io/s/broken-sortable-hoc-bqvyi?file=/src/index.js
just comment/uncomment the overflow:auto in the uppermost element (need to refresh everytime the style is modified)

Reproduce steps:
Move item3 to item1 (on left list), check it overflows to the right, into the second list.
Comment out the overflow: auto, observe the previous behavior doesn't happen anymore

Also, change react-sortable-hoc version from 2.0.0 to 1.5.4, and observe that even with the overflow: auto, this does not happen anymore.