UI: Change Guardicore logo with Akamai logo

[ilija-lazoroski]

What does this PR do?

Add any further explanations here.

PR Checklist

• Have you added an explanation of what your changes do and why you'd like to include them?
• Is the TravisCI build passing?
• Was the CHANGELOG.md updated to reflect the changes?
• Was the documentation framework updated to reflect the changes?
• Have you checked that you haven't introduced any duplicate code?

Testing Checklist

• Added relevant unit tests?
• Have you successfully tested your changes locally? Elaborate:

  Tested by running the Island and checking the links

• If applicable, add screenshots or log transcripts of the feature working

[mssalvatore]

Rebase on develop and add a changelog entry.

[codecov]

Codecov Report

Base: 66.34% // Head: 66.34% // No change to project coverage 👍

Coverage data is based on head (277071d) compared to base (6e209f2).
Patch has no changes to coverable lines.

❗ Current head 277071d differs from pull request most recent head 471c24e. Consider uploading reports for the commit 471c24e to get more accurate results

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2913   +/-   ##
========================================
  Coverage    66.34%   66.34%           
========================================
  Files          424      424           
  Lines        12269    12269           
========================================
  Hits          8140     8140           
  Misses        4129     4129           

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