Update Settings: Add new pixels

[mikescamell]

Task/Issue URL: https://app.asana.com/0/1207908166761516/1208880593716452/f

Description

Adds new pixels to Settings where we were missing some compared to iOS. See task for more details.

Steps to test this PR

Prerequisite: Enable newSettings feature toggle

Cookie Pop-Up Protection

• Open Cookie Pop-Up Protection screen
• Check m_settings_autoconsent_shown Pixel is fired
• Toggle pop-up protection off
• Check m_settings_autoconsent_off Pixel is fired
• Toggle pop-up protection on
• Check m_settings_autoconsent_on Pixel is fired

Next Steps: Address Bar Position

• From main Settings screen click "Set Your Address Bar Position"
• Check m_settings_next_steps_set_address_bar Pixel is fired

Next Steps: Enable Voice Search

• Use a Pixel device
• From main Settings screen click "Enable Voice Search"
• Check m_settings_next_steps_enable_voice_search Pixel is fired

UI changes

N/A

[mikescamell]

• Update Settings: Add new pixels #5434 👈 (View in Graphite)
• develop

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[malmstein]

LGTM