All in dirs (#154)

* Split the project into template and opensaas-sh (demo app (diff) + docs).

* fix

opensaas-sh/blog/src/content/config.ts

@@ -0,0 +1,8 @@
+import { defineCollection } from 'astro:content';
+import { i18nSchema, docsSchema } from '@astrojs/starlight/schema';
+import { blogSchema } from 'starlight-blog/schema';
+
+export const collections = {
+  docs: defineCollection({ schema: docsSchema({ extend: blogSchema() }) }),
+  i18n: defineCollection({ type: 'data', schema: i18nSchema() }),
+};