feat(server): mobile oauth with custom scheme redirect uri (#1204)

* feat(server): support providers without support for custom schemas

* chore: unit tests

* chore: test mobile override

* chore: add details to the docs

mobile/openapi/test/o_auth_api_test.dart

@@ -32,6 +32,11 @@ void main() {
       // TODO
     });
 
+    //Future mobileRedirect() async
+    test('test mobileRedirect', () async {
+      // TODO
+    });
+
     //Future<UserResponseDto> unlink() async
     test('test unlink', () async {
       // TODO