fix(dashboard): Add runtime safety checks and improved tests

[eric-briscoe]

SUMMARY

Add runtime safety checks and improved tests to recursivelyDeleteChildren and findParentId functions

There have been cases where a dashboard ends up with an invalid componentId causing code in workspace to fail removal of a tab. The root cause of where the errant id comes from is still under investigation. This PR adds runtime safety checks to code that was fail when a bad ID existed to treat the symptom and make the application more fault tolerant.

PR adds test to simulate bad states passed into functions to ensure they do not throw uncaught errors.
PR also converts two files to TypeScript to make interfaces more clear.

All existing tests were left unchanged to ensure previous behavior is stable.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• 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 #22457 (236448b) into master (858796b) will decrease coverage by 0.00%.
The diff coverage is 92.30%.

❗ Current head 236448b differs from pull request most recent head 71d01b9. Consider uploading reports for the commit 71d01b9 to get more accurate results

@@            Coverage Diff             @@
##           master   #22457      +/-   ##
==========================================
- Coverage   66.89%   66.88%   -0.01%     
==========================================
  Files        1850     1850              
  Lines       70701    70709       +8     
  Branches     7750     7760      +10     
==========================================
+ Hits        47292    47297       +5     
- Misses      21393    21394       +1     
- Partials     2016     2018       +2     

Flag	Coverage Δ
javascript	53.86% <92.30%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
...perset-frontend/src/dashboard/util/findParentId.ts	86.95% <86.95%> (ø)
...frontend/src/dashboard/reducers/dashboardLayout.js	93.40% <100.00%> (+0.07%)	⬆️

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[eschutho]

LGTM, with just one comment about ts ignores.

[sadpandajoe]

🏷️ preset:2023.01