refactor: icon to icons for annotations & css templates modals

[pkdotson]

SUMMARY

migrates annotations modal icons to the new icons component

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

Go to annotations page and look at the modal title icons

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 #15611 (5902be1) into master (4ab565c) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master   #15611   +/-   ##
=======================================
  Coverage   76.88%   76.88%           
=======================================
  Files         976      976           
  Lines       51317    51318    +1     
  Branches     6907     6907           
=======================================
+ Hits        39455    39456    +1     
  Misses      11643    11643           
  Partials      219      219           

Flag	Coverage Δ
javascript	71.42% <100.00%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
...tend/src/views/CRUD/annotation/AnnotationModal.tsx	62.68% <100.00%> (-0.28%)	⬇️
...ews/CRUD/annotationlayers/AnnotationLayerModal.tsx	69.47% <100.00%> (-0.32%)	⬇️
...d/src/views/CRUD/csstemplates/CssTemplateModal.tsx	67.30% <100.00%> (-0.32%)	⬇️
superset-frontend/src/views/CRUD/utils.tsx	64.16% <100.00%> (+0.30%)	⬆️
...re/components/controls/CollectionControl/index.jsx	83.33% <0.00%> (ø)
...nts/controls/DateFilterControl/DateFilterLabel.tsx	66.93% <0.00%> (+0.26%)	⬆️
...re/components/controls/DatasourceControl/index.jsx	87.17% <0.00%> (+0.33%)	⬆️

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