Fix #1358: Cookie consent blocking

[cuba]

Summary of Changes

This will add a setting to Shields to enable cookie consent notices It will also show a popup on second launch to allow the user to know this feature is available

This pull request fixes #1358

Submitter Checklist:

• [ ] Unit Tests are updated to cover new or changed functionality
• [x] User-facing strings use NSLocalizableString()
• [x] New or updated UI has been tested across:
  • [x] Light & dark mode
  • [x] Different size classes (iPhone, landscape, iPad)
  • [x] Different dynamic type sizes

Test Plan:

Make sure that

When the user clicks on "Yes block cookie consent notices" on the popup:

• [ ] The setting is enabled in shields
• [ ] The cookie notice blocking filter list is enabled
• [ ] The animation plays and then the popup disappears

When the user clicks on "No thanks" on the popup

• [ ] The setting is not enabled in shields
• [ ] The cookie notice blocking filter list is not enabled
• [ ] The popup is dismissed

When the setting is enabled:

• [ ] The popup doesn't appear on second launch (Note: you will need to enabled it on first launch)
• [ ] The cookie consent notices are blocked

When the setting is not enabled:

• [ ] The popup appears on a second launch (note that depending on timing other full screen popups might appear in priority)
• [ ] Cookie consent notices are not blocked

Persistence

• [ ] Test for synchronization between the cookie blocking setting in shields and the filter list is enabled in filter lists screen
• [ ] Test for persistence (setting is held) when the app is terminated

Screenshots:

Reviewer Checklist:

• [ ] Issues include necessary QA labels:
  • QA/(Yes|No)
  • bug / enhancement
• [ ] Necessary security reviews have taken place.
• [ ] Adequate unit test coverage exists to prevent regressions.
• [ ] Adequate test plan exists for QA to validate (if applicable).
• [ ] Issue and pull request is assigned to a milestone (should happen at merge time).

[soner-yuksel]

I have another question. are we supposed to show this pop-up for new users ?

[iccub]

Most of my comments are still unaddressed