Fix offsets not adjusted on autoscale

[yaugenka]

Fixes #5237, Fixes #2826.

calculateOffsets needs to be called after computeAxis because the size of labels can change after the latter.
Also the view port handler needs to be refreshed after that to take the new offsets into account.

[Paget96]

I really like this library and using it in my apps, I would like to call people to continue with this awesome thing. I have forked the repo and started working on it! So I am ready as well to accept pull requests, I'll notify other people from here as well!
Would be more than happy if we continue with this awesome project.

Code is full kotlin now!

Make your pull requests here:
https://github.com/Paget96/MPAndroidChart

[PhilJay]

Thank you. This is in 4.0.0-beta01: the offsets are recomputed after the axis labels, so an auto-scaling chart is no longer a frame behind while panning. 4.0 is a rewrite in Kotlin, so the Java sources this patch touches no longer exist and it cannot be merged as it stands. It was reimplemented rather than merged, so the credit is yours.

https://github.com/PhilJay/MPAndroidChart/releases/tag/v4.0.0-beta01