Polish compare page

[alexdln]

Another issue to polish small UI/UX/a11y details. This time for the compare page. I'll detail all the changes in order in a PR (also partially discussed in Discord).

[serhalp]

👀 Is this issue still needed?

[alexdln]

Yeap, it's still heavy with many columns and a lot of empty space

[alexdln]

Recreated at #1627