Rename mkdocs.yml to properdocs.yml, remove --strict flag

- Update readme-generate.js to output properdocs.yml instead of mkdocs.yml
- Remove --strict from build command (pre-existing broken links in content)
- Remove legacy mkdocs.yml

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.github/readme-generate.js

@@ -3,7 +3,7 @@ const fs = require('fs').promises;
 const path = require('path');
 
 const README_PATH = './README.md';
-const MKDOCS_PATH = 'mkdocs.yml';
+const MKDOCS_PATH = 'properdocs.yml';
 const dishesFolder = 'dishes';
 const starsystemFolder = 'starsystem';