Disable `colormin` feature from `cssnano` (#53393)
cssnano by default tries to convert `rgb` colors to an `hsla` color when
the `hsla` color is shorter for minification purposes.
The issue with this is that the colors aren't the same and we are losing
data when converting to `hsla`.
Input:
```css
html {
background-color: rgb(143 101 98 / 43%);
}
```
Output:
```css
html {
background-color: hsla(4, 19%, 47%, .43);
}
```
(I pretty printed it to make the diff a bit nicer).
If we would convert this `hsla` color back to `rgb` syntax, then it
results in:
```css
html {
background-color: rgb(143 100 97 / 43%);
}
```
Comparing the original value with the last value, then you can see the
difference:
```diff
html {
- background-color: rgb(143 101 98 / 43%);
+ background-color: rgb(143 100 97 / 43%);
/* ^ ^ */
}
```
To solve this issue, we can just disable the `colormin` minification of
`cssnano` entirely.
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---------
Co-authored-by: Zack Tanner <1939140+ztanner@users.noreply.github.com>
