Use oEmbed directly for embed components to remove IFramely dependency

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Read through these two links to understand:

• Look through the documentation for oembed: https://oembed.com/
• The supported providers: https://oembed.com/providers.json

Examples:

• Flourish: https://app.flourish.studio/api/v1/oembed?url=https://public.flourish.studio/visualisation/6147350/&height=575
• Twitter: https://publish.twitter.com/oembed?url=https://twitter.com/ggreenwald/status/1534641054556774402
• YouTube: https://www.youtube.com/oembed?url=https://www.youtube.com/watch?v=RexxgGh_nvo

Some solutions like Instagram needs Access Token: https://developers.facebook.com/docs/instagram-platform/oembed/