Allow editing of gasPrice & gas in Signer (#3777)

* Rework gas display (maintainable)

* Move GasPriceSelector to ui

* Allow opening of gas component (WIP)

* Merge

* Consistency

* Adjust for Signer display

* Set maximum height based on screen size

* Gas editor displays in-place

* Cleanups

* Merge

* Style fixes

* Fixup stash mishap (again)

* Add store test

* Allow edited values to refrect on the display

* Fix properties

* Adjust styling to show different rows

* git mv

* git mv

* Style fixes

* Style updates

* Pass gas & gasPrice with confirmation

* Fix build (case)

* Style fixes

* Basic GasPriceEditor smoketest

* manual move 1

* manual move 2

* manual move 1

* manual move 2

* NODE_ENV=test ace fix

* UI smoketests

* Style

* Format options via formatter

* Initial version

* Re-add even/odd class

* re-add gasLimit to embedded passing

* style

* Updated for passing gas & price to store

* Allow gas/price overrides when none available

* Fix slider value, pass as number