refactor: change warning icon to use icons

[pkdotson]

SUMMARY

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

before

after

TEST PLAN

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 #14462 (5e7ceb6) into master (b179863) will decrease coverage by 0.13%.
The diff coverage is 100.00%.

❗ Current head 5e7ceb6 differs from pull request most recent head 354104b. Consider uploading reports for the commit 354104b to get more accurate results

@@            Coverage Diff             @@
##           master   #14462      +/-   ##
==========================================
- Coverage   77.25%   77.11%   -0.14%     
==========================================
  Files         969      957      -12     
  Lines       50013    48152    -1861     
  Branches     6431     6056     -375     
==========================================
- Hits        38636    37131    -1505     
+ Misses      11174    10820     -354     
+ Partials      203      201       -2     

Flag	Coverage Δ
javascript	71.91% <100.00%> (-0.31%)	⬇️

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

Impacted Files	Coverage Δ
...nd/src/views/CRUD/data/dataset/AddDatasetModal.tsx	58.33% <100.00%> (+2.08%)	⬆️
...src/filters/components/Range/RangeFilterPlugin.tsx	0.00% <0.00%> (-88.68%)	⬇️
...end/src/filters/components/Range/transformProps.ts	20.00% <0.00%> (-80.00%)	⬇️
...ontend/src/filters/components/Select/buildQuery.ts	25.00% <0.00%> (-75.00%)	⬇️
...c/visualizations/TimeTable/TimeTableChartPlugin.js	0.00% <0.00%> (-75.00%)	⬇️
...et-frontend/src/components/Menu/LanguagePicker.tsx	64.28% <0.00%> (-35.72%)	⬇️
superset-frontend/src/modules/utils.js	52.63% <0.00%> (-30.71%)	⬇️
...set-frontend/src/filters/components/Range/index.ts	60.00% <0.00%> (-30.00%)	⬇️
...frontend/src/filters/components/TimeGrain/index.ts	60.00% <0.00%> (-30.00%)	⬇️
...rontend/src/filters/components/TimeColumn/index.ts	60.00% <0.00%> (-30.00%)	⬇️
... and 297 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b179863...354104b. Read the comment docs.

[pkdotson]

Going to close this as there is no longer an icon for add dataset modal