ADD: added new user data model and updated the administration site

backend/internal/player/querys.go

@@ -0,0 +1,19 @@
+package player
+
+const getPLayerWithRolesQuery = `
+SELECT 
+    u.uuid, 
+    u.email, 
+    u.username, 
+    u.firstname,
+    u.lastname,
+    u.birthday, 
+    u.is_active, 
+    u.created_at, 
+	ur.role
+FROM public.users u 
+LEFT JOIN roles ur ON u.uuid = ur.player_id::uuid 
+`
+
+// GROUP BY u.uuid
+// ORDER BY u.uuid ASC;