Several minor improvements to typing and misc.

- Improved schema validation
- Move username parsing and other validators to schema types
- Fix astro check command
- Add JSON/YAML schema validation for data collections
- Update licenses
- Remove deployment script in favor of rsync
- Prevent unsanitized input in export-story script
- Change "eng" language to "en", per BCP47
- Clean up i18n keys and add aria attributes
- Improve MastodonComments behavior on no-JS browsers

src/pages/feed.xml.ts

@@ -24,8 +24,7 @@ function toNoonUTCDate(date: Date) {
 const getLinkForUser = (user: CollectionEntry<"users">, lang: Lang) => {
   const userName = getUsernameForLang(user, lang);
   if (user.data.preferredLink) {
-    const link = user.data.links[user.data.preferredLink]!;
-    return `<a href="${typeof link === "string" ? link : link[0]}">${userName}</a>`;
+    return `<a href="${user.data.links[user.data.preferredLink]!.link}">${userName}</a>`;
   }
   return userName;
 };