move chain switcher to top right

[jakeadelman]

This pr will move the chain switcher (react-select) to top right.

Changes:

• Move connect button to src/components/Aggregator/index.tsx
• Remove position: relative of parent and keep connect button absolute
• Change react-select styles to match other button
• Make the ConnectButton wrapper responsive
• Change z index of tabs to show behind menu

[vercel[bot]]

Someone is attempting to deploy a commit to the sealed-art Team on Vercel.

A member of the Team first needs to authorize it.