Remove ledger connect kit loader

[michalsmiarowski]

Removes @ledgerhq/connect-kit-loader lib due to vulnerability.

Also added banner that informs user about that:

For more information see:

• https://twitter.com/bantg/status/1735279127752540465
• https://twitter.com/Ledger/status/1735291427100455293

[github-actions[bot]]

Preview uploaded to https://preview.dashboard.test.threshold.network/remove-ledger-connect-kit-loader/index.html.