Enable hotspot and crop for author and post images

Refs UiO-Gaming/uiogaming.no#27

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

schemas/author.js

@@ -23,6 +23,7 @@ export default {
       name: "image",
       title: "Bilde",
       type: "image",
+      options: { hotspot: true },
     },
     {
       name: "role",

schemas/post.js

@@ -31,6 +31,7 @@ export default {
       name: "mainImage",
       title: "Forsidebilde",
       type: "image",
+      options: { hotspot: true },
     },
     {
       name: "body",