Instantly show newTab title instead of location

[cezaraugusto]

• 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).

Auditors: @bbondy

Fix #7724

Test Plan: covered by automated test

npm run test -- --grep="shows new tab title instead of about:newtab"

QA steps:

1. Open a new tab by any means (shortcut, plus button, menu)
2. Newtab title should be "New Tab" instead of "about:newtab"

[bsclifton]

Tested it out (before and after these changes)- works great 😄 Thanks for doing the test too!