Added Discord link to footer

[shellyverma]

Added Discord link to the footer section

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[shellyverma]

Hi @snitin315
As per your suggestion on PR #7601, I’ve removed the Discord icon from the header and added the link to the footer in this PR.
Let me know if any further changes are needed. Thanks!

[chenxsan]

I believe it's already added in #7614

[shellyverma]

Thanks for pointing it out @chenxsan
Yes, I realized that I had already added the Discord link in PR #7614 which got merged. This PR (#7616) was unintentionally submitted again.