build(deps-dev): bump to ESLint v10 and properly declare optional globals

[ShGKme]

• Closes: chore(deps-dev): Bump eslint from 9.39.2 to 10.3.0 #1070
• Closes: chore(deps-dev): Bump @nextcloud/eslint-config from 9.0.0-rc.8 to 9.0.0-rc.9 #1057
• Bump ESLint group to v10
• Declare SSR window globals as optional additional properties instead of re-declaring globals object with Nextcloud Window globals:
  • Do not treat these globals as guaranteed (they are only available on a web-page)
    • Also removes @ts-expect-error the error
  • Do not re-declare globalThis as a variable
    • Valid no-shadow-restricted-names error
    • Enabled by default since v10: Rule Change: Update no-shadow-restricted-names to report globalThis by default eslint/eslint#19673

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.65%. Comparing base (1fbc0c6) to head (ec90660).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1074   +/-   ##
=======================================
  Coverage   83.65%   83.65%           
=======================================
  Files           6        6           
  Lines         208      208           
  Branches       86       86           
=======================================
  Hits          174      174           
  Misses         24       24           
  Partials       10       10           

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[Antreesy]

LGTM