Redesign footer

[sof202]

Description

This pull request will redesign the footer as highlighted in #103 (also closes #102 therefore).

Type of change

• [ ] Bug fix
• [ ] New feature
• [ ] Page addition
• [x] Page Redesign
• [ ] Content addition/change
• [ ] Code refactor
• [ ] Documentation

Checklist:

• [x] I have checked that the site runs with no errors locally