MNTOR-5143 - Remove countryCode guard for How it works page

[codemist]

References:

Jira: MNTOR-5143
Figma:

Description

This fixes the “How it works” page by removing unnecessary props and reducing country-specific logic that is no longer needed. The countryCode prop has been removed, since the page only surfaces breach-related information. As part of this cleanup, other unused or redundant props were also removed, including an unnecessary enabledFeatureFlags prop being passed through shell components.

Screenshot (if applicable)

Not applicable.

How to test

Checklist (Definition of Done)

• Localization strings (if needed) have been added.
• Commits in this PR are minimal and have descriptive commit messages.
• I've added or updated the relevant sections in readme and/or code comments
• I've added a unit test to test for potential regressions of this bug.
• If this PR implements a feature flag or experimentation, I've checked that it still works with the flag both on, and with the flag off.
• If this PR implements a feature flag or experimentation, the Ship Behind Feature Flag status in Jira has been set
• Product Owner accepted the User Story (demo of functionality completed) or waived the privilege.
• All acceptance criteria are met.
• Jira ticket has been updated (if needed) to match changes made during the development process.
• Jira ticket has been updated (if needed) with suggestions for QA when this PR is deployed to stage.

[Vinnl]

Nice, good riddance!