Issue 1067, add browser support for Microsoft Edge (version 83).

[juzen2003]

• Fixes #1067
• Were any Django, import pipeline, table_schema, or dictionary files modified? N
  • Database used: opus3_test_200517
  • All Django tests pass: Y
• Were any JavaScript or CSS files modified? Y
  • JSHINT run on all affected files: Y (opus.js)
  • Tested on Chrome, Firefox, Safari, and iOS: Y (Remember to test all browser sizes)
  • Tested for race conditions (with delayed API calls if applicable): NA

Description of changes: Add browser support for latest Edge (version 83).