edgeWidth default value not listed in Docs or Typings

Current Behavior

• edgeWidth is listed in docs with no default value

Expected Behavior

• edgeWidth lists what its default value is in the typings or in the docs

Hello, I apologize if creating an issue for this is not the appropriate action. However while implementing the drawer navigation I realized it was sort of hard to swipe. Luckily you have provided the ability to change that with edgeWidth.. unfortunately I can't seem to determine the "default" value as I am trying to gauge how much I want to increase it.

Thank you!

先檢查 drawer navigation 文件和型別定義中關於 edgeWidth 選項的內容。根據現有實作確認預設值，然後在文件或型別定義中記錄該值，讓使用者能判斷需要將它增加多少。