Service extension buttons have different tooltips than the regular DevTools buttons

Compare the "select widget mode" tooltip:

To the "hide implementation widgets" tooltip:

This seems odd from a UI perspective, particularly when a service extension and non-service extension button are right next to each other.

检查服务扩展按钮和常规 DevTools 按钮的工具提示入口点，并比较它们的措辞，尤其是在这些按钮彼此相邻显示时。更新不一致的工具提示文本，并验证两种按钮类型显示的术语一致。

由索引模型根据 Issue 内容生成。