Fix inverted axes on HoloViews plots

[philippjfr]

Fixes #1732

[codecov]

Codecov Report

Merging #1818 (a248000) into master (d67c09d) will decrease coverage by 0.00%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##           master    #1818      +/-   ##
==========================================
- Coverage   85.13%   85.13%   -0.01%     
==========================================
  Files         151      151              
  Lines       17954    17956       +2     
==========================================
+ Hits        15285    15286       +1     
- Misses       2669     2670       +1     

Impacted Files	Coverage Δ
panel/pane/holoviews.py	83.88% <50.00%> (-0.17%)	⬇️

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