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/guides/faq/is-copying-ok/readme.mdx

@@ -0,0 +1,80 @@
+---
+title: Can I copy an existing design?
+---
+
+This question comes up in various forms, but it boils down to: How much am I
+allowed to copy from, or be inspired by, an existing product when designing
+patterns.
+
+First and foremost -- and this should go without saying -- this is not legal
+advice.  And while we're at it, please forget the idea that there is some sort
+of basic set of legal rules that governs this.  What is acceptable and what is
+not -- in the eyes of the law -- varies based on where you live.  So while it's
+fun for legal scholars, it's not that useful of a debate to have inside our
+community.
+
+Instead, your guiding principle should be: **Don't be a dick**.
+
+So while we're not in the business of telling people what to do, when it comes to
+contributing to FreeSewing, here are some practical examples:
+
+## Do you accept contributions that are a copy of a commercial pattern?
+
+Absolutely not.
+
+Copying a commercial pattern is obviously a dick move, and we won't accept any
+contribution if we know it was ripped from a commercial pattern.
+
+You are directly undercutting the original designer. And regardless of whether
+that's an indie designer who might be depending on the sales of their pattern
+to put food on the table or some big pattern company that you feel should be
+taken down a notch: It doesn't matter. Not cool. Don't do this.
+
+## Do you accept contributions that are a copy of an existing garment?
+
+Yes.
+
+Do you own something you really love or saw something on the runway that has
+you swooning? Go ahead and (try to) replicate that look in a pattern you design
+yourself. It's fair game; it's how the fashion industry operates.
+
+One could argue that it is probably impossible to come up with a design that is
+not -- to some extent -- influenced by things we've seen before.
+
+:::note
+### Don't pretend trademarks don't exist
+
+This should go without saying, but this does not mean you can put "*Gucci*" (or
+whatever) on your design.
+
+:::
+
+## Do you accept contributions that are based on instructions in a book?
+
+It depends.
+
+### Is the purpose of the book to provide blueprints for garments?
+
+In this case: back off.  By providing the pattern for free, you are clearly
+undercutting the original author and their business model.
+
+An examples would be [Müller & Sohn](https://www.muellerundsohn.com/).
+
+### Is the purpose of the book to teach you?
+
+In this case: go ahead.  You can use what you've learned in the book to create
+your own designs. That does not undercut the original author as people buying
+these books want to learn about pattern design. They are not looking for the
+end product.
+
+Examples would be:
+
+ - [How Patterns Work by
+   Assembil](https://www.assembil.com/how-patterns-work-book/) (an excellent
+   resource)
+ - [Shirtmaking by David Page
+   Coffin](https://www.amazon.com/Shirtmaking-Developing-Skills-Fine-Sewing-ebook/dp/B00243GMOO)
+   (who was a friend of FreeSewing and is sorely missed 💔 )
+ - [Patternmaking for Menswear by Gareth
+   Kershaw](https://www.laurenceking.com/products/pattern-cutting-for-menswear) (another
+   good resource)

sites/dev/docs/guides/faq/readme.mdx

@@ -0,0 +1,7 @@
+---
+title: Frequently Asked Questions (FAQ)
+sidebar_position: 40
+sidebar_label: Frequently Asked Questions
+---
+
+<ReadMore recurse />