feat: convert non-evm amounts to fiat

[micaelae]

Description

This enables looking up non-evm exchange rate data for converting token amounts

Related issues

Fixes:

Manual testing steps

1. Select non-evm account
2. Open bridge experience and select token
3. Enter an amount
4. Converted amount should appear under input field

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 [5493811]

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

Page Load Metrics (1603 ± 46 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	399	1820	1561	284	136
		domContentLoaded	1409	1784	1583	95	46
		load	1427	1806	1603	96	46
		domInteractive	17	205	54	43	21
		backgroundConnect	9	43	23	11	5
		firstReactRender	14	80	31	24	12
		getState	4	58	18	20	9
		initialActions	0	1	0	0	0
		loadScripts	1006	1394	1192	98	47
		setupStore	6	57	17	18	8
		uiStartup	1623	2109	1820	121	58

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

• background: 0 Bytes (0.00%)
• ui: 806 Bytes (0.01%)
• common: 511 Bytes (0.00%)

[metamaskbot]

Builds ready [ba2f108]

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

Page Load Metrics (1794 ± 71 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1616	2210	1797	148	71
		domContentLoaded	1608	2191	1759	144	69
		load	1617	2201	1794	147	71
		domInteractive	20	115	47	24	12
		backgroundConnect	11	102	34	28	13
		firstReactRender	14	71	32	22	11
		getState	4	66	17	19	9
		initialActions	0	1	0	0	0
		loadScripts	1172	1697	1325	129	62
		setupStore	7	75	13	14	7
		uiStartup	1834	2536	2027	174	84

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

• background: 0 Bytes (0.00%)
• ui: 806 Bytes (0.01%)
• common: 511 Bytes (0.00%)

[metamaskbot]

Builds ready [374aa05]

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

Page Load Metrics (1749 ± 85 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1492	2193	1749	177	85
		domContentLoaded	1483	2086	1719	165	79
		load	1492	2194	1749	178	85
		domInteractive	26	102	48	23	11
		backgroundConnect	10	124	31	27	13
		firstReactRender	14	73	29	20	10
		getState	4	126	16	27	13
		initialActions	0	1	0	0	0
		loadScripts	1073	1624	1283	142	68
		setupStore	7	68	26	23	11
		uiStartup	1752	2754	2001	243	117

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

• background: 0 Bytes (0.00%)
• ui: 806 Bytes (0.01%)
• common: 525 Bytes (0.01%)