feat: adds displayName property to OIDC authentication module (#6096)

* Adds displayName property to oidc authentication method
* fix: update displayName prop
* fix: use blank display name in oidc auth

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Co-authored-by: Nicolas Giard <github@ngpixel.com>

server/modules/authentication/oidc/definition.yml

@@ -49,21 +49,28 @@ props:
     default: email
     maxWidth: 500
     order: 7
+  displayNameClaim:
+    type: String
+    title: Display Name Claim
+    hint: Field containing the user display name
+    default: displayName
+    maxWidth: 500
+    order: 8
   mapGroups:
     type: Boolean
     title: Map Groups
     hint: Map groups matching names from the groups claim value
     default: false
-    order: 8
+    order: 9
   groupsClaim:
     type: String
     title: Groups Claim
     hint: Field containing the group names
     default: groups
     maxWidth: 500
-    order: 9
+    order: 10
   logoutURL:
     type: String
     title: Logout URL
     hint: (optional) Logout URL on the OAuth2 provider where the user will be redirected to complete the logout process.
-    order: 10
+    order: 11