The "Padding" property value might overflow

Reproduce by overriding the app theme font to something bigger and use `EdgeInsets.fromLTRB` as the padding value.
The pencil icon is unclickable when this happens.

Version: `0.1.13`

![image](https://github.com/bluefireteam/dashbook/assets/35524595/457e8ffc-7c0a-4e62-800a-d24d6d6112a7)