pagex: update dev server, fix file names

voidcannon: initial author page work

src/content/authors/placeholder.pagex.js

@@ -0,0 +1,8 @@
+import {PagexResourceTransformer} from "pagex";
+import {VoidcannonContentType, VoidcannonEmojiStyle} from "voidcannon";
+
+export default {
+    type: VoidcannonContentType.AUTHOR,
+    id: "placeholder",
+    name: "Placeholder Author",
+}