Add security headers

[Jennievon]

Why this change is needed

Please provide a description and a link to the underlying ticket

https://github.com/ten-protocol/ten-internal/issues/3140
Add security headers as proposed by Beagle Security mitigation techniques

What changes were made as part of this PR

Please provide a high level list of the changes made

• set X-Frame-Options to deny to prevent the page from being loaded in an iFrame
• set X-Content-Type-Options to nosniff to indicate the browser shouldn't interpret the response as something other than the specified content type

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[zkokelj]

LGTM!
Maybe worth checking if we need to include also some other security related tags with this PR