Autocomplete: Window size too short for snippets

micro:bit support #24390 and #24511

Hi, when I use the Python editor to code with the autocomplete function on, I often find the autocomplete field too short to see everything.

Here's a screenshot of a case where -I think- what I say is clear:

The partial solution I have found is to reduce the fontsize (with the "-"), and I see this:
image

Anyway, I think it would be great if you could adapt the autocomplete dimensions according to the text shown so that no zoom is needed to "solve" that.

Another possible solution woul be so allow the windo to scroll sideways to view the entire snippet

首先，在啟用自動完成的 Python 編輯器中，使用如螢幕截圖所示的長程式碼片段重現問題。找出自動完成視窗的大小與溢位行為，接著驗證無需縮小字型大小即可顯示完整的程式碼片段，方法是調整尺寸或允許水平捲動。