risky domains protection

[SabrinaTardio]

Task/Issue URL: https://app.asana.com/0/1204186595873227/1209409234171914

Description: Adds risky domain protection to our VPN

Optional E2E tests:

• Run PIR E2E tests
  Check this to run the Personal Information Removal end to end tests. If updating CCF, or any PIR related code, tick this.

Steps to test this PR:
DNS Settings Migration

1. Run the app from main branch and set a custom DNS
2. Run the app from this branch
3. Check that the DNS is still set the the custom one

Feature Flag

1. Check that no option is visible for risky domains protection under the default DNS
2. Select the default DNS and visit http://malware.privacy-test-pages.site/ check it loads
3. Go to debug menu Feature Flags -> turn the Network protection block risky domain flag on
4. Check that when you visit http://malware.privacy-test-pages.site/ it still loads (the flag should not make the VPN restart)
5. Go to the VPN settings and check that the risky site protection option is visible and it is on
6. Restart the VPN and check that http://malware.privacy-test-pages.site/ is blocked

Toggle DNS settings

1. Try toggle the option on and off and check by visiting the test page that the blocking/non blocking is respected
2. Toggle between default and custom DNS and check that the previously selected risk protection option is retained
3. When going back to custom check that the IP address previously selected is retained

<!—
Tagging instructions
If this PR isn't ready to be merged for whatever reason it should be marked with the DO NOT MERGE label (particularly if it's a draft)
If it's pending Product Review/PFR, please add the Pending Product Review label.

If at any point it isn't actively being worked on/ready for review/otherwise moving forward (besides the above PR/PFR exception) strongly consider closing it (or not opening it in the first place). If you decide not to close it, make sure it's labelled to make it clear the PRs state and comment with more information.
—>

Definition of Done:

• Does this PR satisfy our Definition of Done?

—

Internal references:

Pull Request Review Checklist
Software Engineering Expectations
Technical Design Template
Pull Request Documentation

[github-actions]

	Messages
📖	You seem to be updating localized strings. Make sure that you request translations and include translated strings before you ship your change. See Localization Guidelines for more information.

Generated by 🚫 dangerJS against f2d4261

[github-actions]

This PR has been inactive for more than 7 days and will be automatically closed 7 days from now.