Document initialConnections

[Montoya]

Description

Updated Snaps Permissions page to include initialConnections

Issue(s) fixed

Fixes #1317

Preview

Checklist

Complete this checklist before merging your PR:

• [x] If this PR contains a major change to the documentation content, I have added an entry to the top of the "What's new?" page.
• [ ] The proposed changes have been reviewed and approved by a member of the documentation team.

[github-actions[bot]]

Preview published: snaps-initial-connections

[github-actions[bot]]

Preview published: snaps-initial-connections

[github-actions[bot]]

Preview published: snaps-initial-connections