chore: Rename to stable

[danjm]

Description

Rename references to the stable branch. It will be called stable rather than master.

Related issues

Relates to https://github.com/MetaMask/MetaMask-planning/issues/3677/

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.

[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.

[metamaskbot]

Builds ready [79be051]

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

Page Load Metrics (1651 ± 59 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	393	1889	1599	297	143
		domContentLoaded	1383	1840	1617	123	59
		load	1394	1888	1651	123	59
		domInteractive	22	66	29	12	6
		backgroundConnect	9	90	35	25	12
		firstReactRender	14	91	26	21	10
		getState	45	176	76	30	15
		initialActions	0	1	0	0	0
		loadScripts	1032	1468	1237	119	57
		setupStore	6	55	10	11	5
		uiStartup	1592	2572	1901	211	101

Bundle size diffs [🚀 Bundle size reduced!]

• background: 0 Bytes (0.00%)
• ui: 0 Bytes (0.00%)
• common: -3 Bytes (-0.00%)

The base branch was changed.

[Gudahtt]

Rebased to resolve conflicts

[Gudahtt]

Mostly looks good, found just one typo

[Gudahtt]

LGTM!

[metamaskbot]

Builds ready [296ac6b]

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

Page Load Metrics (1821 ± 73 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	554	2107	1765	314	151
		domContentLoaded	1519	2040	1794	143	69
		load	1527	2111	1821	152	73
		domInteractive	25	149	40	28	13
		backgroundConnect	6	75	29	21	10
		firstReactRender	15	50	21	9	4
		getState	46	108	87	22	10
		initialActions	0	0	0	0	0
		loadScripts	1136	1588	1370	128	61
		setupStore	6	53	15	14	7
		uiStartup	1747	2335	2071	152	73