Bump @enonic-types/* to ^8.0.0-B4

[rymsha]

Summary

• Bumps every @enonic-types/* devDependency from the previous ^7.16.x mix to ^8.0.0-B4, aligning the lib's TS types with the XP 8 runtime it now targets.
• Refreshes package-lock.json accordingly.

Build & tests

• npm run build — green (rollup:nodePolyfills, tsup:server, build:types all exit 0).
• npm run test:jest — 11/11 passing.
• npx tsc --noEmit -p tsconfig.nashorn.json still reports 4 errors, but they are pre-existing on master (missing /lib/enonic/static module declaration and a types/Component import); not introduced by this bump.

Reference

Doc-code change pinning the XP 7 → XP 8 @enonic-types upgrade contract: enonic/doc-code@967803a.

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 22.85%. Comparing base (fd1274c) to head (c374155).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2165   +/-   ##
=======================================
  Coverage   22.85%   22.85%           
=======================================
  Files           1        1           
  Lines          35       35           
=======================================
  Hits            8        8           
  Misses         27       27           

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