[25/10/2022]: Fix missing icon on `move to top` button

[RealRichi3]

Summary

Fixed missing icon in move to top button for the english webpage

Fixes #206

List of changes proposed in this PR (pull-request)

• Added font-awesome classes to display up arrow icon

• [x] Everything looks ok?

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[RealRichi3]

@BatoolMM @alswajiab please review

[BatoolMM]

Can you add a screenshot of the change you made @RealRichi3?

[RealRichi3]

alright @BatoolMM

[RealRichi3]

@BatoolMM Here's is the new change