Render alignment track arcs instantly after bpPerPx change

[cmdcolin]

#3697 reintroduced the render delay for the non block based arc tracks, which only renders after a certain timeout instead of on every frame, but this PR adds code to instantly render after a zoom level change, instead of after a render delay, which helps avoid "blanking" (a new vocab word) of the screen

[codecov]

Codecov Report

Merging #3700 (efa5bd2) into main (7a95722) will increase coverage by 0.01%.
The diff coverage is 80.76%.

@@            Coverage Diff             @@
##             main    #3700      +/-   ##
==========================================
+ Coverage   64.00%   64.01%   +0.01%     
==========================================
  Files         924      925       +1     
  Lines       29982    29989       +7     
  Branches     7274     7275       +1     
==========================================
+ Hits        19190    19198       +8     
+ Misses      10609    10608       -1     
  Partials      183      183              

Impacted Files	Coverage Δ
.../alignments/src/LinearReadArcsDisplay/drawFeats.ts	77.27% <ø> (-1.30%)	⬇️
...alignments/src/LinearReadCloudDisplay/drawFeats.ts	85.55% <ø> (-1.26%)	⬇️
plugins/alignments/src/shared/renderSvg.tsx	0.00% <0.00%> (ø)
...s/linear-genome-view/src/LinearGenomeView/model.ts	84.48% <ø> (ø)
...ins/alignments/src/LinearReadArcsDisplay/model.tsx	48.43% <71.42%> (-5.62%)	⬇️
...ns/alignments/src/LinearReadCloudDisplay/model.tsx	60.46% <75.00%> (-0.32%)	⬇️
.../alignments/src/shared/dynamicTrackAfterAttach.tsx	96.29% <96.29%> (ø)
...inearReadArcsDisplay/components/ReactComponent.tsx	100.00% <100.00%> (ø)
...ins/alignments/src/shared/BaseDisplayComponent.tsx	90.90% <100.00%> (+0.43%)	⬆️

... and 1 file with indirect coverage changes

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