* remove tokens context in favor of localstorage

refactor localstorage

improve adding custom token flow

* drop exchange language

* ensure url tokens are added to localstorage

clean up routing

remove unnecessary output approval checks

* fix bad import

* Remove unused imported checks

* remove unused imports
Co-authored-by: Ian Lapham <ianlapham@gmail.com>

* add basic structure for advanced mode

* auto dismiss popup

* Remove test code

* remove shadow

* Update advanced section, ui tweaks, balances back inline

* fix memory leak
Co-authored-by: Callil Capuozzo <callil.capuozzo@gmail.com>

* small layout and text changes, bug fixes

* UI changes, add summary to txns

* Remove updates, small changes on send, common bases

* updated keys in pair context

* fix bug on imported liquidity

* Add price bar and spacing tweaks

* Header tweaks

* Base for token import, query params, styling updates

* remove unused imports

* query params, create flow

* set ETH as default for create

* Style tweaks and price bar location

* add mobile popups, mobile styling on header

* updated mobile styles

* style updates mobile, fix build
Co-authored-by: Callil Capuozzo <callil.capuozzo@gmail.com>

* UI updates, big fixes on route hook

* fix bug on all pair list

* logout fix and  add mainnet WETH

* add fix for ETH balance fetching

* add tokens to other testnets

* update with Exchange -> Pair

* routes throuh ETH

* fix logs

* fix conflict

* Hide dark and advanced, fix bug on empty balances

* remove unused imports

* change default dark mode

* add warning on main net

* remove unused imports

closes #616

* improve network env setup

* update for token routing

* fix imports

* update market rate calculation and input parsing for 0 decimal tokens

* remove style bump and revert tokens

* add custom warning for pasted tokens

* update centering

* upload dark theme

* update copy and loading state

* copy edits

* update color

* multiple cards

* update market rate calculation and input parsing for 0 decimal tokens

* remove style bump and revert tokens

* add DONUT

* close #600

* add aDAI close #602

* update search on token input

* remove comments