Fix: Broken download button icon UI

[mayan-000]

Description

This PR fixes the distorted icon of download button when visiting back from subpages on landing pages.

Relevant Technical Choices

• Changed the svg used as download button, as it had some issue of misalignment causing distortion.
• Used icon from performance tab's download button.

Testing Instructions

• Open cookie table, and then visit multiple subpages.
• Come back to the landing page and icon should be consistent and no issue should be there.

Additional Information:

Screenshot/Screencast

Screen.Recording.2024-04-22.at.12.05.22.mov

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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).

Fixes #624