1284 opus freeze if spinner delay not met on search tab

[juzen2003]

• Fixes #1284
• Were any Django, import pipeline, or table_schema files modified? N
  • If YES:
  • Database used (or new import): opus3_test_230109
  • FLAKE8 run on modified code: Y/NA
  • All Django tests pass: Y
  • Code coverage run and still at 100%: Y
• Were any JavaScript or CSS files modified? Y
  • If YES:
  • JSHINT run on all affected files: Y
  • Tested on Chrome, Firefox, Safari, Edge, and iOS: NA (Remember to test all browser sizes)
  • Tested for race conditions (with delayed API calls if applicable): NA
• Was the documentation reviewed for necessary changes or additions? NA
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Description of changes:

• The opus freeze is coming from o_utils.disableUserInteraction() and the spinner on the screen is coming from $(".op-select-metadata-load-status > .loader") in showMenuLoaderSpinner function. To fix the issue, a if check is added to make sure the spinner timer is not set again when it has already been set. Known problems:

[rfrenchseti]

@dstopp When reviewing this pull, be sure to look at the original issue to see how to reproduce it.