added emoji-regex in package.json, modified urlBar.js to remove emoji

[prasanthp96]

Fixes #10051

As per the hint given, I have removed the emojis in title bar by using emoji-regex and replacing them with empty string.

Reviewer Tag:
@cezaraugusto

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.

Test Plan:

Reviewer Checklist:

Tests

• 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

[cezaraugusto]

sorry I was unable to add a test case and eventually closed this. I created #10314 keeping you as the committer. Looks perfect btw please follow there and sorry for the inconvenience :) great job