UPDATE AuthController to return user details with APIResponse; ADD user fetching logic in MainLayout and Topbar

src/main/java/com/ddf/vodsystem/configuration/SecurityConfig.java

@@ -1,5 +1,6 @@
 package com.ddf.vodsystem.configuration;
 
+import com.ddf.vodsystem.security.CustomOAuth2UserService;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -46,4 +47,4 @@ public class SecurityConfig {
         return (request, response, authentication) -> response.sendRedirect(frontendUrl);
     }
 
-}
+}