Fixing ACE editor font jank (again?!)

[rusackas]

CATEGORY

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• Bug Fix
• Enhancement (new features, refinement)
• Refactor
• Add tests
• Build / Development Environment
• Documentation

SUMMARY

Fixes #9253

Playing whack-a-mole with a font width/tracking issue in ACE editor(s). Tried to fix it in Safari, which seemed to work, but somehow now causes issue in Chrome. Undoing the fix, with a net delta of a new typeface, SEEMS to me, to work in both Chrome AND Safari, but I feel like I could use a sanity check from @etr2460 or anyone else.

Also of note, react-ace is on v5 in Superset, where they're on v8. I tried upgrading, and ran into all sorts of upgrade woes. It DID seem to solve solve this font width issue, however. I'll try to make an upgrade somewhere between v6 and v8 on a separate PR, so heads up about that, and speak up with any experience/warnings/objections if you have them.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Chrome:

Safari:

TEST PLAN

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Requires DB Migration.
• Confirm DB Migration upgrade and downgrade tested.
• Introduces new feature or API
• Removes existing feature or API

REVIEWERS

@etr2460

[etr2460]

tested the fix in chrome and it lgtm

[codecov-io]

Codecov Report

Merging #9264 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #9264   +/-   ##
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  Coverage    58.9%   58.9%           
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  Files         373     373           
  Lines       12026   12026           
  Branches     2953    2953           
======================================
  Hits         7084    7084           
  Misses       4763    4763           
  Partials      179     179

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