fix(frontend): fix copyToClipboard on non-HTTPS site

[ImSingee]

navigator.clipboard is only available on HTTPS sites if the host is not localhost.

Though there are some implements like https://stackoverflow.com/a/65996386/8398770, using a well-tested third-party library is better (it can handle many edge cases).

This PR uses clip-to-keyboard npm package for this.

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[ImSingee]

I have read the CLA Document and I hereby sign the CLA

[rubenfiszel]

Looks like it uses execCommand first which seems to be deprecated: https://developer.mozilla.org/en-US/docs/Web/API/Document/execCommand#
Would rather not import a library just for this

[ImSingee]

@rubenfiszel I removed the 3rd-party library and used navigator.clipboard if possible

[rubenfiszel]

Thanks!