* Changed max button to checkbox, disabled input if max mode is on, recalculate price according to gas fee if max mode is on
* Disabled insufficient funds message in the modal if max mode is on, displays proper amounts in modal when max mode is on, sets the send amount according to custom gas price after gas modal save, resets the send amount after resetting custom gas price
* Disabled max mode checkbox if gas buttons are loading, refactored gas-modal-page-container
* Implemented new max button & max mode message. Moved insufficient funds error to underneath the send amount field
* Fixed existing integration test to pass, created new tests to ensure send amount field is disabled when max button is clicked and the amount changes when the gas price is changed. Refactored some components
* Move send to pages/
* Fix unit tests
* Finish UI
* Integrate asset dropdown to send actions
* Remove console.log
* Hide asset change during edit
* Enable switch from send token to seand eth
* Enable switching from token to eth when editing
* Fix linter
* Fixing test
* Fix unit tests
* Fix linter
* Fix react warning; remove console.log
* fix flat test
* Add metrics
* Address code review comments
* Consistent spacing between send screen form rows.
* Reduce height of gas buttons on send screen.
* Make send screen gas button height dependent on size of contents.
* Extract advanced gas input controls to their own component
* Add advanced inline gas toggle to settings
* Add optional advanced inline gas to send send screen
* Adds optional advanced gas inputs to the confirm screen
* Add info modals for advanced gas inputs.
* Fix translation of advance gas toggle description.
* Lint and unit test fixes for inline-advanced-gas-inputs
* Increase margin above advanced options button on send screen
* Move methods from constructor to property syntax in advanced-gas-inputs.component
* Refactor and fix styling for first time flow. Remove seed phrase from persisted metamask state
* Fix linting and tests
* Fix translations, initialization notice routing
* Fix drizzle tests
* Fix e2e tests
* Fix integration tests
* Fix styling
* Fix migration naming from 030 to 031
* Open extension in browser when user has not completed onboarding
* Fix rounding issue when sending max tokens
* Ensure amount row shows exact amount of max tokens on send screen (#2)
* Fix tests
* Change stored redux value from BigNumber to hex string. Fix TokenInput default value
Refs #4417
This change is functional copy of 3893469 that solves the problem in a way
that doesn't depend on the height of the app bar since the app bar isn't a
fixed height in the smaller views.