Refactors UrlBarIcon into redux

[NejcZdovc]

Test Plan

• type :g into url bar -> google icon is shown
• when you open new tab search icon is loaded
• when you load a site that has certificate, lock icon should be shown
• when you load a http site, unlock icon should be shown

Description

Submitter Checklist:

• Submitted a ticket for my issue if one did not already exist.
• Used Github auto-closing keywords in the commit message.
• Added/updated tests for this change (for new code or code which already has tests).
• Ran git rebase -i to squash commits (if needed).
• Tagged reviewers and labelled the pull request as needed.

Resolves #9340

Auditors: @bsclifton @bridiver

Reviewer Checklist:

• Adequate test coverage exists to prevent regressions
• Tests should be independent and work correctly when run individually or as a suite ref
• New files have MPL2 license header

[bsclifton]

LGTM 😄 👍