* Refactoring signature-request out to a new component. Wip
* Styling polish and a better message display.
* Update signature request header to no longer use account dropdown mini
* Clean up code and styles
* Code cleanup for signature request redesign branch
* Fix signature request design for full screen
* Replace makenode with object.entries in signature-request-message.component.js
* Remove unused accounts prop from signature-request.component.js
* Use beforeunload instead of window.onbeforeunload in signature-request
* Adds ab test controller with a fullScreenVsPopup test
* Add migration for fullScreenVsPopup state
* Move abtest state under an 'abtests' object.
* MetaMask shows fullScreen group of a/b test unapproved txs in a full browser tab
* Ensure cancel metrics event in confirm-transaction-base.component.js is sent in all cases
* Switch to existing tab for unapproved tx if it exists when opening in full screen
* Send metrics event for entering a/b test from confirm screen
* Fix lint, unit and integration tests related to a/b test code
* Remove unnecessary tabs.query call in triggerUiInNewTab
* Adds 4byte registry fallback to getMethodData() (#6435)
* Adds fetchWithCache to guard against unnecessary API calls
* Add custom fetch wrapper with abort on timeout
* Use opts and cacheRefreshTime in fetch-with-cache util
* Use custom fetch wrapper with timeout for fetch-with-cache
* Improve contract method data fetching (#6623)
* Remove async call from getTransactionActionKey()
* Stop blocking confirm screen rendering on method data loading, and base screen route on transactionCategory
* Remove use of withMethodData, fix use of knownMethodData, in relation to transaction-list-item.component
* Load data contract method data progressively, making it non-blocking; requires simplifying conf-tx-base lifecycle logic.
* Allow editing of gas price while loading on the confirm screen.
* Fix transactionAction component and its unit tests.
* Fix confirm transaction components for cases of route transitions within metamask.
* Only call toString on id if truthy in getNavigateTxData()
* Fix knownMethodData retrieval and data fetching from fourbyte
