docs(angular) updated with correct div closing

[cernezan]

What kind of change does this PR introduce?

Angular docs updated by closing auth html file with </div**>**.

Angular docs link.

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Name	Status	Preview	Comments	Updated
docs	✅ Ready (Inspect)	Visit Preview	💬 Add your feedback	Dec 19, 2022 at 3:27PM (UTC)

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[saltcod]

Thanks @cernezan !