* Parse inner JSX as Astro
This completes the compiler changes, updating the parser so that it parses inner "JSX" as Astro. It does this by finding the start and end of HTML tags and feeds that back into the parser.
The result is a structure like this:
```
{
type: 'MustacheTag',
expression: [
{
type: 'Expression',
codeStart: 'colors.map(color => (',
codeEnd: '}}'
children: [ {
type: 'Fragment',
children: [ {
type: 'Element',
name: 'div'
} ]
} ]
}
]
}
```
There is a new Node type, `Expression`. Note that `MustacheTag` remains in the tree, all it contains is an Expression though. I could spend some time trying to remove it, there's just a few places that expect it to exist.
* Update import to the transform
* Transform prism components into expressions
* Compiler cleanup
This is general compiler cleanup, especially around the codegen part. Goals here were too:
1. Make it possible to compile HTML recursively (needed for future astro-in-expressions work) by moving that work into its own function.
1. Get rid of collectionItems and have compiling the HTML return just a source string.
Also not planned, this change gets rid of the different between components and pages. All Astro components compile to the same JavaScript.
* Remove unused node types
