design.md

The Plan

1. Run Preprocessor.parse from content-tag to get template locations. manually convert gjs files with <template> tags into valid JS, which doesn't change location. The <template> tag gets converted into empty strings.

2. convert empty string to a custom Template Ast node, which holds the template content.

3. Run the estree Prettier printer, which formats the valid JS above.

4. Grab template contents from Template AST node described above.

5. Run the hbs Prettier printer against the template contents.

6. Replace the Template AST node with the results from above, wrapped in <template>, like so:

   <template>
     <h1>Hello</h1>
   </template>