Fix: Left over references and make some more space in the cookie table.

[amovar18]

Description

This PR aims to hide the priority and size columns since they do not provide any useful information. This PR also aims to sweep some leftover references for unmapped cookies and orphaned cookies from the sidebar.

Testing Instructions

• Clone this branch. In the terminal run npm start.
• Open a fresh browser instance and go to https://bbc.com.
• There should be no Unmapped Cookies or Orphaned Cookies in the frames list.
• Click on any of the frames having cookies you should see the table without priority and size columns.

Screenshot/Screencast

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Checklist

• I have thoroughly tested this code to the best of my abilities.
• I have reviewed the code myself before requesting a review.
• This code is covered by unit tests to verify that it works as intended.
• The QA of this PR is done by a member of the QA team (to be checked by QA).