Fix safari chart rendering issues. #6303
Merged
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Motivation for features / changes
I found a couple of problems with scalar line chart rendering in Safari while investigating Not show lines in Safari on MacOS 13.3 #6280.
Testing
I tested in both Safari and Chrome that Canvas/Three.js and SVG rendering work (using forceSVG=false and forceSVG=true, respectively).
I imported the changes internally and ran internal presubmits.
I did not write any more tests because (1) utils.ts is currently not covered by tests and (2) this is a Safari problem which only has best effort support.