Quick fix for slider bug in interactive viewers

[cheesema]

Problem:

A change in the behaviour of our QT based slider dependencies have resulted in a bug due to float values being passed in where the underlying libraries now only support integers.

Solution:

Cast the inputs to integers before they reach the slider components.

Note: This is a patch fix, and could have some un-intended consequences.

However, the main objective is to get these working agian from a fresh install.

Testing:

Worked locally on Windows / WSL. But to be confirmed by Joel before merge.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes missing coverage. Please review.

Project coverage is 75.15%. Comparing base (191b674) to head (9220cee).

Files	Patch %	Lines
pyapr/utils/filegui.py	0.00%	8 Missing ⚠️
pyapr/viewer/compressInteractive.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #76      +/-   ##
==========================================
- Coverage   75.24%   75.15%   -0.10%     
==========================================
  Files          56       56              
  Lines        2460     2463       +3     
==========================================
  Hits         1851     1851              
- Misses        609      612       +3     

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