refactor: icon to icons for refreshlabel

[pkdotson]

SUMMARY

This pr migrates the icon to icons for the refresh label component within dataset editor.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

Go to dataset editor modal to and view the refreshlabel icon

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #15466 (9724186) into master (4a394cd) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master   #15466   +/-   ##
=======================================
  Coverage   77.22%   77.22%           
=======================================
  Files         974      974           
  Lines       50747    50747           
  Branches     6256     6256           
=======================================
  Hits        39187    39187           
  Misses      11347    11347           
  Partials      213      213           

Flag	Coverage Δ
javascript	71.78% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
superset-frontend/src/components/Icons/index.tsx	100.00% <ø> (ø)
...set-frontend/src/components/RefreshLabel/index.tsx	100.00% <100.00%> (ø)

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[villebro]

LGTM, but would appreciate a stamp from @michael-s-molina as he has a good grip on this part of the codebase.