fix(config): add missing queryConfigEnabled to type-cast mappings

[yogeshwaran-c]

Description

The queryConfigEnabled configuration option is defined in src/core/config/defaults.js (line 66) with a default value of false, but it was missing from the type-cast mappings in src/core/config/type-cast/mappings.js.

This means when queryConfigEnabled was provided via a string-based configuration source (e.g., query string), it would not be properly type-cast from a string to a boolean.

Motivation and Context

Fixes #10744

Every other boolean config option in defaults.js has a corresponding entry in mappings.js. This was the only one missing.

How Has This Been Tested?

• Compared all keys in defaults.js against mappings.js to verify queryConfigEnabled was the only missing entry
• The mapping follows the exact same pattern as other boolean options like persistAuthorization, tryItOutEnabled, etc.

Screenshots (if appropriate):

N/A

Checklist

My PR contains...

• No code changes (src/ is unmodified: changes to documentation, CI, metadata, etc.)
• Dependency changes (any modification to dependencies in package.json)
• Bug fixes (non-breaking change which fixes an issue)
• Improvements (misc. changes to existing features)
• Features (non-breaking change which adds functionality)

My changes...

• are breaking changes to a public API (config options, System API, major UI change, etc).
• are breaking changes to a private API (Redux, component props, utility functions, etc.).
• are breaking changes to a developer API (npm script behavior changes, new dev system dependencies, etc).
• are not breaking changes.

Documentation

• My changes do not require a change to the project documentation.
• My changes require a change to the project documentation.
• If yes to above: I have updated the documentation accordingly.

Automated tests

• My changes can not or do not need to be tested.
• My changes can and should be tested by unit and/or integration tests.
• If yes to above: I have added tests to cover my changes.
• If yes to above: I have taken care to cover edge cases in my tests.
• All new and existing tests passed.