Add footer links hover

[ahmed-abohmaid]

Closes #249

What change does this pull request introduce? Added hover effect to some of footer links to look like others (text-decoration: underline)

Screenshots Before:

After:

Checklist

• [x] I worked on a branch other than main.
• [x] My branch is up-to-date with the Upstream main branch.
• [x] I have fixed potential errors using yarn lint.
• [x] I ran yarn build to check everything still builds successfully.

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