update changelog / gitignore for 3.0.0-alpha.13

.gitignore

@@ -1,12 +1,8 @@
 _site
 .cache
 .DS_Store
-package.json
-package-lock.json
 dist/
 dist-cdn/
-docs/public/pagefind
 node_modules
 src/react
-.astro
 cdn/

docs/docs/resources/changelog.md

@@ -12,7 +12,7 @@ Components with the <wa-badge variant="warning" pill>Experimental</wa-badge> bad
 During the alpha period, things might break! We take breaking changes very seriously, but sometimes they're necessary to make the final product that much better. We appreciate your patience!
 :::
 
-## Next
+## 3.0.0-alpha.13
 
 - 🚨 BREAKING: Renamed `<image-comparer>` to `<wa-comparison>` and improved compatibility for non-image content
 - 🚨 BREAKING:  Added slot detection to `<wa-dialog>` and `<wa-drawer>` so you don't need to specify `with-header` and `with-footer`; headers are on by default now, but you can use the `without-header` attribute to turn them off
@@ -308,4 +308,4 @@ Here's a list of some of the things that have changed since Shoelace v2. For que
 
 Did we miss something? [Let us know!](https://github.com/shoelace-style/webawesome-alpha/discussions)
 
-Are you coming from Shoelace? [The 2.x changelog can be found here.](https://shoelace.style/resources/changelog/)
+Are you coming from Shoelace? [The 2.x changelog can be found here.](https://shoelace.style/resources/changelog/)