Update Twitter Icon to Latest X Logo

[213sanjana]

Description:
The footer currently displays the old Twitter bird icon. Since Twitter has officially rebranded to X, we should update the icon to maintain brand consistency and modern standards.

🔧 Tasks:
Replace the existing Twitter bird icon with the latest X logo.

The latest Twitter icon to be changed is-

Level 1
gssoc25
@HarshS16 Assign this task to me.

[github-actions]

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