Chore: operate on an allowlist rather than fuzzy-blocklist approach

## Description
The application currently uses a fuzzy-blocklist approach to handle requests in app/store/sagas/xmlHttpRequestOverride.ts
It may not be as secure or maintainable as an allowlist approach.

## Expected Outcome
Refactor the request handling strategy to operate on an allowlist basis, enhancing security and maintainability.

## Suggested Implementation
1. Review the current request handling logic in app/store/sagas/xmlHttpRequestOverride.ts
2. Identify areas where the fuzzy-blocklist approach is used.
3. Develop a clear allowlist of approved requests and modify the request handling logic to adhere to this list.

Start by reading app/store/sagas/xmlHttpRequestOverride.ts and reviewing its current request-handling logic. Identify where the fuzzy-blocklist approach is used, then define the approved-request allowlist and update handling to follow it. Done means requests are governed by the allowlist rather than fuzzy blocklist checks.

Written by the indexing model from the issue text.