fix: Improved passdns message in Messages.properties

Signed-off-by: MMaiero <[email protected]>

kura/org.eclipse.kura.web2/src/main/resources/org/eclipse/kura/web/client/messages/Messages.properties

@@ -599,7 +599,7 @@ netRouterDhcpSubnetMask=DHCP Subnet Mask
 netRouterDhcpDefaultLease=DHCP Default Lease Time (s)
 netRouterDhcpMaxLease=DHCP Max Lease Time (s)
 netRouterDhcpNATWarning=If NAT is enabled, gateway LAN/WAN connectivity will be shared without the ability of tracking and monitoring connected user traffic and identity.
-netRouterPassDns=Pass DNS Servers through DHCP
+netRouterPassDns=Pass DNS Servers through DHCP: enables DNS Proxy (i.e. passing DNS servers through DHCP). The DNS servers are passed only if the Router Mode is set as "DHCP and NAT".
 netRouterConfiguredForDhcpError=Invalid selection when TCP/IP is configured for DHCP
 netRouterToolTipMode=Select if interface provides DHCP addresses, network address translation, or both.
 netRouterToolTipDhcpBeginAddr=For DHCP, enter the first available client address.