Add Link to social media icon

[akshatggupta]

Description:

Currently, the social media icons on the site are not clickable. It would be helpful if each icon could link to the corresponding social media profile or page.

Expected Behavior:

Clicking on a social media icon should open the relevant elixir social media page in a new tab.

Assets:

elixir github link : https://github.com/ElixirTechCommunity
twitter link: https://x.com/TheElixirTech
linkedin link: https://www.linkedin.com/company/geeksforgeeks-abesec