* remove duplicated prettier from dependencies

* use swr for allowances

* slight improvements to error cascading

* fetch totalsupply with SWR

fetch pairs with SWR (except persistent pairs, will be refactored later)

* fix lint error

* stop using pair context, instead store per-user pairs in local storage

* add more pairs to the default list

remove unnecessary isWETH

fix lint error

* add more bases to trade consideration

* fix lint warnings

* get SWR data on same schedule

* don't pass value if it's 0

fix WETH equality checks

* clean up fixed/significant formatting

* fix slippage calculation bug in swap

add slippage to remove

* fix token logos

* show fewer sig figs

* lint error

* remove unused signer

* add calculateSlippageAmount safety check and tests

* fix useAllBalances type

stop spuriously sorting token amounts of different tokens

use slightly better comparisons for slippage calculations

* improve priceSlippage comparison logic

* useReserves -> usePair

* use checksum for DAI logo address