Question Why EditorGUILayout.BeginScrollView in editorwindow script not showing the horizontal scroll bar?

it's showing only the vertical scrolling bar.

Code (csharp):

1.  
2. using UnityEngine;
3. using UnityEditor;
4. using System.Collections;
5. using System.Collections.Generic;
6. using System.Reflection;
7. using System;
8. using System.Linq;
9. using System.Xml;
10. using static Unity.VisualScripting.Member;
11.  
12. public class ScriptFinder : EditorWindow
13. {
14.     static ScriptFinder window;
15.     static Dictionary<GameObject, string> dictio = new Dictionary<GameObject, string>();
16.     Vector2 scrollPos;
17.  
18.     [MenuItem("EditorUtility/Script Finder")]
19.     static void OpenScriptFinder()
20.     {
21.         window = (ScriptFinder)EditorWindow.GetWindow(typeof(ScriptFinder));
22.  
23.         MonoBehaviour[] scripts = UnityEngine.Object.FindObjectsOfType<MonoBehaviour>();
24.         foreach (MonoBehaviour script in scripts)
25.         {
26.             Type scriptType = script.GetType();
27.             var scope = scriptType.Namespace;
28.             if (scope == null || !scope.StartsWith("Unity"))
29.             {
30.                 if (!dictio.Keys.Contains(script.gameObject))
31.                 {
32.                     dictio.Add(script.gameObject, scriptType.Name);
33.                 }
34.             }
35.         }
36.     }
37.  
38.     void OnGUI()
39.     {
40.         GUI.color = Color.white;
41.  
42.         scrollPos =
43.             EditorGUILayout.BeginScrollView(scrollPos, GUILayout.Width(position.width), GUILayout.Height(position.height));
44.         foreach (KeyValuePair<GameObject, string> pair in dictio)
45.         {
46.             EditorGUILayout.BeginHorizontal();
47.  
48.             EditorGUILayout.ObjectField(pair.Key, typeof(GameObject), true);
49.             EditorGUILayout.TextField(pair.Value);
50.  
51.             EditorGUILayout.EndHorizontal();
52.         }
53.         GUILayout.EndScrollView();
54.     }
55. }
56.  

the result is that some text on the right is getting swallow.
I can drag and expand more the window size, but I want to display horizontal scroll bar or to set automatic the window width size so it will show all the text on the width.

result: