feat: add book images

src/_data/books.js

@@ -6,7 +6,13 @@ module.exports = async function () {
   // noinspection JSCheckFunctionSignatures
   const asset = new AssetCache('books_data')
   if (asset.isCacheValid('1h')) return await asset.getCachedValue()
-  const res = await extract(url)
+  const res = await extract(url, {
+    getExtraEntryFields: (feedEntry) => {
+      return {
+        image: feedEntry['oku:cover'] || 'https://cdn.coryd.dev/books/missing-book.jpg',
+      }
+    },
+  })
     .catch((error) => {
       console.log(error.message)
     })

src/_data/site.json

@@ -13,8 +13,10 @@
   "instapaper": "https://www.instapaper.com/p/coryd",
   "letterboxd": "https://letterboxd.com/cdme",
   "letterboxd-host": "https://a.ltrbxd.com",
+  "oku-host": "https://oku.ams3.cdn.digitaloceanspaces.com",
   "trakt": "https://trakt.tv/users/cdransf",
   "oku": "https://oku.club/user/cory",
   "coffee": "https://www.buymeacoffee.com/cory",
-  "cdn-movies": "https://movies.coryd.dev"
+  "cdn-movies": "https://movies.coryd.dev",
+  "cdn-books": "https://books.coryd.dev"
 }