• Only show floating action button and stats bar on ConfigurationFragment.
• Add a certificate prober to probe the TLS certificate of a server (based on TLS-scribe).
• Fix dialer DNS lookup issue on some wired devices.
• [Experimental] Support Hysteria 2/Hysteria 1 port hopping on TUN system stack by using protect method in VpnService (Hysteria 2 plugin v2.4.1+/Hysteria 1 plugin v1.3.5-2 required).