fix: Estimated fee in redesigned screens

[pedronfigueiredo]

cherry-pick: (#27247)

maxFeePerGas, maxPriorityFeePerGas and estimatedBaseFee are decimal values that should be converted before being used inside multiplyHexes and addHexes. estimatedBaseFee also needs to be converted to wei.

Fixes:

1. Go to this page... 2.

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Description

Related issues

Fixes:

Manual testing steps

1. Go to this page...

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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.12%. Comparing base (439f7d6) to head (3fcbdd6).
Report is 14 commits behind head on Version-v12.3.0.

Additional details and impacted files

@@                 Coverage Diff                 @@
##           Version-v12.3.0   #27250      +/-   ##
===================================================
- Coverage            70.24%   70.12%   -0.12%     
===================================================
  Files                 1426     1431       +5     
  Lines                50239    50379     +140     
  Branches             13954    13978      +24     
===================================================
+ Hits                 35289    35327      +38     
- Misses               14950    15052     +102     

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[metamaskbot]

Builds ready [3fcbdd6]

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

Page Load Metrics (1899 ± 97 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	279	2360	1823	405	195
		domContentLoaded	1616	2304	1861	187	90
		load	1629	2359	1899	201	97
		domInteractive	17	89	37	21	10

[metamaskbot]

No release label on PR. Adding release label release-12.3.0 on PR, as PR was added to branch 12.3.0 when release was cut.