fix (patch): erc20 token prices on non-ETH networks

[bergeron]

Description

Fixes an issue with erc20 token prices on networks where ETH is not the native currency.

When the price API does not support the native currency (e.g. MATIC), prices are fetched in ETH and an additional conversion hop is performed. But the extension was using the raw value without this additional hop.

This PR patches the relevant parts of MetaMask/core#4364.

Because that change is already in 12.1.0, this patch will no longer be needed in that version.

Related issues

Manual testing steps

1. Load a wallet on polygon with erc20 tokens
2. Verify fiat prices are correct

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.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[bergeron]

I patched both the .js and .mjs files, because I wasn't sure which was necessary

[metamaskbot]

Builds ready [ece9eff]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

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

Page Load Metrics (139 ± 177 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	73	127	89	14	7
		domContentLoaded	8	17	11	2	1
		load	41	1748	139	369	177
		domInteractive	8	17	11	2	1

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.75%. Comparing base (985862b) to head (ece9eff).
Report is 1 commits behind head on Version-v12.0.5.

Additional details and impacted files

@@               Coverage Diff                @@
##           Version-v12.0.5   #26450   +/-   ##
================================================
  Coverage            65.75%   65.75%           
================================================
  Files                 1372     1372           
  Lines                54782    54782           
  Branches             14262    14262           
================================================
  Hits                 36020    36020           
  Misses               18762    18762           

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