Icons are no longer `inline-flex`, which causes alignment issues
Icons in v1.4.0 are not aligning correctly anymore.  There seems to be some extra height to all the icons.  The previous version had the following rule, which is now missing:

```
[class^="ph-"],
[class*=" ph-"] {
  display: inline-flex;
}
```

Here is an example using v1.3.0: https://codepen.io/kevinleedrum/pen/WNZZPBQ
Here is the same example, but with v1.4.0: https://codepen.io/kevinleedrum/pen/NWaaoZq

Did Nucleo change something?

Thanks for your time!