Resizing "Classes" panel only responsive one way

When making the "Classes" panel larger horizontally classes use the created space.
But when when making the panel smaller again the classes don't return to their previous state, and there is no horizontal scroll to view or click the classes.

Example:
###### 1. Start

###### 2. Make the panel larger horizontally (classes nicely use the space to so it becomes one line)

###### 3. Make the panel smaller again (classes stay in one line and don't break like in the start state)

Chrome: `Version 97.0.4692.71 (Official Build) (x86_64)`
DevTools for Tailwind CSS: `1.0.1`

在 Chrome 97 中使用适用于 Tailwind CSS 1.0.1 的 DevTools，通过先放大再缩小 Classes panel 来复现该问题。检查 Classes panel 的调整大小行为；完成的标准是类重新按照之前的布局换行，或者提供水平滚动，以便所有类仍然可见且可点击。

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