updated layout and volunteer

change the ui and now able to remove assigned addresses from volunteer

app/internal/models/structs.go

@@ -39,7 +39,7 @@ type User struct {
     Phone     string    
     Password  string    
     RoleID    int
-    AdminCode string  
+    AdminCode *string  
     CreatedAt time.Time 
     UpdatedAt time.Time 
 }