chore: Stabilize v12.1.0

[Gudahtt]

Description

The -beta.0 suffice has been removed from the version number to prepare for the production release.

Related issues

N/A

Manual testing steps

N/A

Screenshots/Recordings

N/A

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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.80%. Comparing base (335c9e4) to head (5301d81).

Additional details and impacted files

@@               Coverage Diff                @@
##           Version-v12.1.0   #26664   +/-   ##
================================================
  Coverage            69.80%   69.80%           
================================================
  Files                 1370     1370           
  Lines                48739    48739           
  Branches             13438    13438           
================================================
  Hits                 34019    34019           
  Misses               14720    14720           

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[metamaskbot]

Builds ready [5301d81]

• 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
  • common: 0, 1, 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 (177 ± 178 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	95	174	123	21	10
		domContentLoaded	12	94	40	20	10
		load	62	1792	177	371	178
		domInteractive	12	94	40	20	10

[desi]

Let's go!