The `metaMaskFee` property on the "quote data" PropType was not used,
and it never existed in practice. This resulted in PropType errors.
The non-existent property has been removed.
The quote list columns have been adjusted to add more space in between
the columns. Additionally, the third column cells are now better
aligned under the header. A few unnecessary `<div>`s and CSS classes
have been removed as well.
