Added missing properties. to example query commands

Added missing `properties.` to example command for queries properties from Container App Environment. Looks like it was just missing on this page. The page for doing the same thing in internal environments has this correctly (https://docs.microsoft.com/en-us/azure/container-apps/vnet-custom-internal?tabs=bash&pivots=azure-cli).

Author: ProgrammerAL

articles/container-apps/vnet-custom.md

@@ -182,11 +182,11 @@ First, extract identifiable information from the environment.
 # [Bash](#tab/bash)
 
 ```bash
-ENVIRONMENT_DEFAULT_DOMAIN=`az containerapp env show --name ${CONTAINERAPPS_ENVIRONMENT} --resource-group ${RESOURCE_GROUP} --query defaultDomain --out json | tr -d '"'`
+ENVIRONMENT_DEFAULT_DOMAIN=`az containerapp env show --name ${CONTAINERAPPS_ENVIRONMENT} --resource-group ${RESOURCE_GROUP} --query properties.defaultDomain --out json | tr -d '"'`
 ```
 
 ```bash
-ENVIRONMENT_STATIC_IP=`az containerapp env show --name ${CONTAINERAPPS_ENVIRONMENT} --resource-group ${RESOURCE_GROUP} --query staticIp --out json | tr -d '"'`
+ENVIRONMENT_STATIC_IP=`az containerapp env show --name ${CONTAINERAPPS_ENVIRONMENT} --resource-group ${RESOURCE_GROUP} --query properties.staticIp --out json | tr -d '"'`
 ```
 
 ```bash
@@ -196,11 +196,11 @@ VNET_ID=`az network vnet show --resource-group ${RESOURCE_GROUP} --name ${VNET_N
 # [PowerShell](#tab/powershell)
 
 ```powershell
-$ENVIRONMENT_DEFAULT_DOMAIN=(az containerapp env show --name $CONTAINERAPPS_ENVIRONMENT --resource-group $RESOURCE_GROUP --query defaultDomain -o tsv)
+$ENVIRONMENT_DEFAULT_DOMAIN=(az containerapp env show --name $CONTAINERAPPS_ENVIRONMENT --resource-group $RESOURCE_GROUP --query properties.defaultDomain -o tsv)
 ```
 
 ```powershell
-$ENVIRONMENT_STATIC_IP=(az containerapp env show --name $CONTAINERAPPS_ENVIRONMENT --resource-group $RESOURCE_GROUP --query staticIp -o tsv)
+$ENVIRONMENT_STATIC_IP=(az containerapp env show --name $CONTAINERAPPS_ENVIRONMENT --resource-group $RESOURCE_GROUP --query properties.staticIp -o tsv)
 ```
 
 ```powershell