Snaps: Update snap_notify to include expanded view

[Montoya]

Description

Update snap_notify method to include expanded view parameters and multiple examples.

Update Snap feature page for notifications to include expanded view.

Update Custom UI to include notification expanded view to the list of areas that can use JSX.

Issue(s) fixed

Fixes #1544

Preview

Checklist

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• 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.

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Name	Status	Preview	Comments	Updated (UTC)
metamask-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Dec 16, 2024 2:59am

[bgravenorst]

Some feedback.

Also, I assume this does not return a result? But would it make sense to have the "Returns" heading and mention that it doesn't return anything.

[Montoya]

Also, I assume this does not return a result? But would it make sense to have the "Returns" heading and mention that it doesn't return anything.

We don't do that for other methods that do not return a result, so it's consistent for now.

[bgravenorst]

lgtm.