fix: make optional fields nullable (#69)

Signed-off-by: romanetar <roman_ag@hotmail.com>

Author: romanetar

resources/js/oauth2/profile/edit_client/components/oauth_panel.js

@@ -88,9 +88,9 @@ const OauthPanel = ({
                 "The app description field is required."
             ),
             website: string().max(SIMPLE_INPUT_MAX_LENGTH, ''),
-            logo_uri: string().max(SIMPLE_INPUT_MAX_LENGTH, ''),
-            tos_uri: string().max(SIMPLE_INPUT_MAX_LENGTH, ''),
-            policy_uri: string().max(SIMPLE_INPUT_MAX_LENGTH, ''),
+            logo_uri: string().max(SIMPLE_INPUT_MAX_LENGTH, '').nullable(),
+            tos_uri: string().max(SIMPLE_INPUT_MAX_LENGTH, '').nullable(),
+            policy_uri: string().max(SIMPLE_INPUT_MAX_LENGTH, '').nullable(),
         });
     }