fix(web): disable metadata edit if user is not owner

[martabal]

Changes made in this PR

Currently, anyone can edit asset metadata, but API requests fail due to incorrect permissions. This PR hides the edit button if the user is not the asset owner.

[alextran1502]

I think you can access the PageData data, which has user property in it with the syntax below in the component

<script>
import { page } from "$app/stores"
$page.data;
</script>