feat: gas fee token toast

[matthewwalsh0]

Description

Show toast message when changing gas fee tokens.

Plus:

• Temporarily disable support for future ETH flow.
• Add missing unit tests for GasFeeTokenIcon and GasFeeDetails.

Related issues

Manual testing steps

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[metamaskbot]

Builds ready [d7ced2a]

• builds: chrome, firefox
• builds (flask): chrome, firefox
• builds (MMI): chrome
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7, 8
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
  • content-script: 0
  • offscreen: 0

Page Load Metrics (3638 ± 1780 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	286	18952	3295	3677	1765
		domContentLoaded	1653	18307	3089	3542	1701
		load	1719	19515	3638	3707	1780
		domInteractive	27	395	94	114	55
		backgroundConnect	79	1227	556	270	130
		firstReactRender	26	311	119	58	28
		getState	21	596	272	154	74
		initialActions	0	1	0	0	0
		loadScripts	1205	17041	2350	3390	1628
		setupStore	9	377	164	105	51
		uiStartup	2078	21474	6825	4206	2020

[metamaskbot]

Builds ready [db5444b]

• builds: chrome, firefox
• builds (flask): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• bundle size: Bundle Size Stats
• user-actions-benchmark: User Actions Stats
• storybook: Storybook
• typescript migration: Dashboard
• all CircleCI artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7, 8
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
  • content-script: 0
  • offscreen: 0

UI Startup Metrics (1216 ± 60 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Home	uiStartup	1216	1090	1449	60	1246	1311
			load	1072	969	1270	56	1143	995
			domContentLoaded	1067	964	1265	56	1138	993
			domInteractive	17	13	77	8	16	29
			firstPaint	680	132	1270	435	234	277
			backgroundConnect	9	6	16	2	9	10
			firstReactRender	19	15	47	5	20	27
			getState	11	4	30	7	6	8
			initialActions	0	0	9	1	0	1
			loadScripts	815	718	999	55	847	903
			setupStore	7	5	23	3	7	8
	Webpack	Home	uiStartup	981	872	1146	59	976	995
			load	837	620	983	70	876	925
			domContentLoaded	831	609	979	70	868	919
			domInteractive	16	12	77	9	14	40
			firstPaint	423	69	921	337	848	885
			backgroundConnect	16	12	41	5	16	30
			firstReactRender	14	12	32	3	15	24
			getState	7	4	20	3	7	9
			initialActions	0	0	1	0	0	1
			loadScripts	828	599	977	70	866	916
			setupStore	8	5	17	2	8	9
Firefox	Browserify	Home	uiStartup	1328	1178	1810	134	1353	1701
			load	1192	1041	1651	129	1215	1553
			domContentLoaded	1191	1041	1651	129	1214	1552
			domInteractive	101	47	223	24	89	97
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	23	16	49	6	23	40
			firstReactRender	23	19	51	6	24	34
			getState	8	4	45	7	7	8
			initialActions	0	0	2	0	0	1
			loadScripts	1170	1024	1626	127	1195	1524
			setupStore	6	3	27	3	5	7
	Webpack	Home	uiStartup	985	837	1509	167	896	948
			load	864	730	1311	146	803	936
			domContentLoaded	863	729	1310	147	802	935
			domInteractive	118	33	465	46	151	95
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	21	14	96	13	23	36
			firstReactRender	19	16	37	3	19	23
			getState	10	4	76	11	7	9
			initialActions	0	0	1	0	0	1
			loadScripts	846	717	1287	142	785	918
			setupStore	9	5	65	9	7	9

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 0 Bytes (0%)
• ui: 2.46 KiB (0.04%)
• common: 75 Bytes (0%)