Redraw the whole image in icicle mode because the text bbox is malformed

[IanButterworth]

Just redraws the whole image in icicle mode to work around a bug with the text bbox when the coordinate system is inverted.

I couldn't figure out a fix, so this is a workaround. The window seems just as responsive to me.

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Issue

To illustrate with random colors in place of the redraw.
:flame looks good

:icicle

[timholy]

:flame looks messed up too: there are fat bars drawn over skinny ones. Is that an artifact of how you captured it or actually present?

[codecov]

Codecov Report

Merging #199 (345a9a0) into master (7d4c8c4) will decrease coverage by 0.14%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #199      +/-   ##
==========================================
- Coverage   79.92%   79.77%   -0.15%     
==========================================
  Files           2        2              
  Lines         274      272       -2     
==========================================
- Hits          219      217       -2     
  Misses         55       55              

Impacted Files	Coverage Δ
src/ProfileView.jl	85.77% <100.00%> (-0.12%)	⬇️

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[IanButterworth]

I think that's just an illusion with the shapes overlaying. Interactively it looks correct

[timholy]

Thanks! Sorry I didn't notice this earlier.