Dark Mode: Elevate the theme dropdown from experimental to regular settings

[darkwing]

Explanation

When we feel confident in our dark mode work, we should make it a standard setting, not experimental.

More Information

Requires approval from @kevinghim and/or someone else in product.

[github-actions[bot]]

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.

[kevinghim]

LGTM. Thanks @darkwing !

[metamaskbot]

Builds ready [809bc8e]

• builds: chrome, firefox, opera
• builds (beta): chrome, firefox, opera
• builds (flask): chrome, firefox, opera
• 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
  • content-script: 0
  • contentscript: contentscript
  • disable-console: disable-console
  • inpage: inpage
  • policy-load: policy-load
  • sentry-install: sentry-install
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1327 ± 59 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	88	134	107	12	6
		domContentLoaded	1201	1600	1296	112	54
		load	1201	1619	1327	123	59
		domInteractive	1201	1600	1296	112	54

highlights:

storybook

• ui/pages/settings/advanced-tab/advanced-tab.stories.js
• ui/pages/settings/contact-list-tab/contact-list-tab.stories.js
• ui/pages/settings/flask/snaps-list-tab/snap-list-tab.stories.js
• ui/pages/settings/info-tab/info-tab.stories.js
• ui/pages/settings/networks-tab/networks-list-item/networks-list-item.stories.js
• ui/pages/settings/networks-tab/networks-list/network-list.stories.js
• ui/pages/settings/settings.stories.js

[brad-decker]

@darkwing should this be merged or should we throw a DO NOT MERGE label on?