Add FXIOS-14435 [Terms of Use] Display links from Privacy Notice modally

[tomerqodo]

Benchmark PR from qodo-benchmark#20

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Note

Implements modal presentation for Privacy Notice links and wires end-to-end navigation.

• Adds privacyNoticeLink(URL) destination and tapOnPrivacyNoticeLink action; reducer passes navigationDestination through; BVC routes to showPrivacyNoticeLink.
• Extends BrowserNavigationHandler and BrowserCoordinator with showPrivacyNoticeLink(url:), presenting TermsOfUseLinkViewController full-screen.
• Updates PrivacyNoticeCell to detect link taps (UITextViewDelegate) and expose linkAction; HomepageViewController dispatches navigation on link tap.
• Adds unit tests for reducer navigation and coordinator presentation.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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Missing weak self capture causes potential retain cycle

Medium Severity

The linkAction closure in configurePrivacyNoticeCell captures self strongly, while the adjacent closeButtonAction closure correctly uses [weak self]. This creates a retain cycle: HomepageViewController → collection view → PrivacyNoticeCell → linkAction closure → HomepageViewController. The closure needs [weak self] and the call changed to self?.dispatchPrivacyNoticeLinkTapped(url: url).