default search icon for SearchBox does not scale

[adamleeberger]

to reproduce:

1. React project using react-instantsearch-hooks-web (e.g. https://codesandbox.io/s/funny-mirzakhani-3nynwc?file=/src/App.tsx)

2. Render element. Notice the looking-glass icon appears correctly.

3. Now increase the font size for the project, e.g. using the following css:

• {
  font-size: 16px;
  }

4. Notice that the looking-glass icon is now distorted.

Desired behavior: icon should render properly regardless of font size.

[adamleeberger]

sorry, step 2 should read : "Render SearchBox element"