Cleanup Items

[drebarrera]

• Switch block links to arrow links
• Transparent header on init
• Change up promo world image to something more friendly
• Borders in the hero component - change from 8px to 4px on mutual borders

[drebarrera]

• Make header sticky
• Make footer non-sticky (relative)

[leroyrosales]

All these issues have been separated out into their own tickets now, closing this.