Formatting extensions app client id

Handled removing '-' characters from extensions app ID to simplify deployment process

docs/setupb2c.md

@@ -31,7 +31,7 @@
 
 1. In Azure AD B2C click **App registrations (Preview)** then the **All applications** header
 1. Select the **b2c-extensions-app** item
-1. Copy the Application ID, you will need this for the application deployment. ***Note: remove the "-" characters from this string for later use***
+1. Copy the Application ID, you will need this for the application deployment.
 
 # Create User Flows
 

templates/azuredeploy.json

@@ -81,7 +81,8 @@
         "appName": "zap",
         "resgpguid": "[substring(replace(guid(resourceGroup().id), '-', ''), 0, 4)]",
         "resourceName": "[concat(toLower(parameters('orgName')), '-', toLower(variables('appName')))]",
-        "callbackPath": "/signin-oidc"
+        "callbackPath": "/signin-oidc",
+        "extensionClientId": "[replace(parameters('extensionClientId'), '-', '')]"
     },
     "resources": [
         {
@@ -207,7 +208,7 @@
                         },
                         {
                             "Name": "ExtensionId",
-                            "Value": "[parameters('extensionClientId')]"
+                            "Value": "[variables('extensionClientId')]"
                         },
                         {
                             "Name": "ClientId",