Default's declarations are now processed and merged even when there is no tailwind base directive included in the stylesheet. Without this applying tailwind utilities in css modules would break if they relied on defaults rules.
Co-authored-by: Robin Malfait <malfait.robin@gmail.com>
* use String.raw for css escapes
This will allow us to write code like:
```css
.mobile\:font-bold {}
```
Instead of
```css
.mobile\\:font-bold {}
```
Which resembles "real" css way better in our tests.
* use String.raw in integration tests as well
* move `./tests/jit` to `./tests`
* make tests consistent
Abstracted a `run` function and some syntax highlighting helpers for
`html`, `css` and `javascript`.
