Fix: Medium icon is now visible in Docusaurus footer

[sumushi]

Description

The medium link was added but its icon was not visible. So, added it to the items Array.

Fixes #1148

Type of Change:

• Code
• Quality Assurance
• User Interface
• Outreach
• Documentation

Code/Quality Assurance Only

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality pre-approved by mentors)

How Has This Been Tested?

No tests needed.

Checklist:

• My PR follows the style guidelines of this project
• I have performed a self-review of my own code or materials

Code/Quality Assurance Only

• My changes generate no new warnings

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[codecov]

Codecov Report

Merging #1149 (ccbcb69) into develop (94daff8) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1149   +/-   ##
========================================
  Coverage    94.99%   94.99%           
========================================
  Files           38       38           
  Lines         2058     2058           
========================================
  Hits          1955     1955           
  Misses         103      103           

[vj-codes]

Looks good, can you also add the screenshot of the icon being displayed on the footer in the PR description?

[isabelcosta]

@sumushi do you have any doubt about @vj-codes's request?

[vj-codes]

Closing this PR due to inactivity
Thank you for your contribution @sumushi :)