At first launch, when connecting to a QRCode, if there an connection issue, the camera has a green square to tell the QRcode was recognize, but it remains green even if there is an issue after and no error message displayed

we should display that there is a connection issue, and set the square white again

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if the error is due to http not s, the message should tel that is only supports secured servers

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when connecting not with qrcode, if the error is due to http not s, the message should tel that is only supports secured servers