[FLASK] Allow Snaps to use eth_accounts as a revokable permission

[FrederikBolding]

Explanation

Allows Snaps to access eth_accounts as a revokable permission. This means that snaps now can use eth_accounts and eth_requestAccounts to prompt the user for account selection. This permission can be revoked again in the snaps settings whenever.

This PR is mainly UI changes to make the account connection flow work with these changes and UI additions for permission revoking.

This PR needs the latest, unpublished version of the snaps monorepo to work completely.

[metamaskbot]

Builds ready [08c38ec]

• builds: chrome, firefox
• builds (beta): chrome
• builds (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
  • content-script: 0
  • contentscript: contentscript
  • disable-console: disable-console
  • inpage: inpage
  • policy-load: policy-load
  • sentry-install: sentry-install
  • ui: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1518 ± 28 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	109	212	130	21	10
		domContentLoaded	1408	1655	1518	57	28
		load	1408	1655	1518	57	28
		domInteractive	1408	1655	1518	57	28

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: -44876 bytes
• ui: 607 bytes
• common: 44973 bytes