Integrate privacy dashboard

[CrisBarreiro]

Task/Issue URL: https://app.asana.com/0/1205008441501016/1208836754662808

Description

Steps to test this PR

Pre-requisites
npm i github:duckduckgo/privacy-dashboard#pr-releases/pr-300

Feature 1

• Visit https://privacy-test-pages.site/security/badware/phishing.html
• Accept the risk and visit site
• Click on Privacy Shield
• Check a modified version of privacy dashboard is shown reflecting the malicious site status

UI changes

Before	After
!(Upload before screenshot)	(Upload after screenshot)

[CrisBarreiro]

• Add omnibar icon for exempted malicious site #5594
• Integrate privacy dashboard #5593 👈 (View in Graphite)
• Add feed to isMalicious return type and update error page with feed info #5564 : 1 other dependent PR (#5585 )
• Display warning page for malicious sites #5416
• Add blocking algorithm #5370 : 2 other dependent PRs (#5376 , #5510 )
• Intercept requests and add skeleton for malicious site detection #5369
• develop

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