refactor: Extracts type definitions from ExtensionsRegistry

[michael-s-molina]

SUMMARY

This PR extracts types definitions from ExtensionsRegistry to a types.ts file to improve maintainability.

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 #24214 (e39e302) into master (9df8d8d) will not change coverage.
The diff coverage is n/a.

❗ Current head e39e302 differs from pull request most recent head cccabb2. Consider uploading reports for the commit cccabb2 to get more accurate results

@@           Coverage Diff           @@
##           master   #24214   +/-   ##
=======================================
  Coverage   68.30%   68.30%           
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  Files        1957     1957           
  Lines       75594    75594           
  Branches     8224     8224           
=======================================
  Hits        51637    51637           
  Misses      21849    21849           
  Partials     2108     2108           

Flag	Coverage Δ
javascript	54.72% <ø> (ø)

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Impacted Files	Coverage Δ
...set-ui-core/src/ui-overrides/ExtensionsRegistry.ts	100.00% <ø> (ø)

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[Antonio-RiveroMartnez]

Nice! lgtm