chore: Port FreeSewing.dev to docusaurus

The replaces the NextJS site powering FreeSewing.dev with a Docusaurus
setup. It's part of my efforts to simplify FreeSewing's setup so we can
focus on our core value proposition.

sites/dev/docs/reference/api/stack/home/readme.mdx

@@ -0,0 +1,22 @@
+---
+title: Stack.home()
+---
+
+The `Stack.home()` method calculates the stack's bounding box,
+setting the `width`, `height`, `topLeft`, and `bottomRight` properties,
+and returns the original stack.
+
+## Stack.home() signature
+
+```js
+Stack stack.home()
+```
+:::noteThis method is chainable as it returns the Stack object:::
+
+## Notes
+
+The bounding box is calculated taking into consideration the `margin` setting.
+
+`Stack.home()` caches its calculations by checking whether the stack's
+`topLeft` property has been set.
+If `topLeft` has a truthy value, it will not re-calculate.