fix linting and make code nicer

src/backend/metadata/getmeta.ts

@@ -54,16 +54,21 @@ export async function getMetaFromId(
     throw err;
   }
 
-  const imdbId = data.external_ids.find(
+  let imdbId = data.external_ids.find(
     (v) => v.provider === "imdb_latest"
-  )?.external_id ?? data.external_ids.find(
+  )?.external_id
-    (v) => v.provider === "imdb"
+  if (!imdbId)
-  )?.external_id;
+    imdbId = data.external_ids.find(
-  const tmdbId = data.external_ids.find(
+      (v) => v.provider === "imdb"
+    )?.external_id;
+
+  let tmdbId = data.external_ids.find(
     (v) => v.provider === "tmdb_latest"
-  )?.external_id ?? data.external_ids.find(
+  )?.external_id
-    (v) => v.provider === "tmdb"
+  if (!tmdbId)
-  )?.external_id;
+  tmdbId = data.external_ids.find(
+      (v) => v.provider === "tmdb"
+    )?.external_id;
 
   if (!imdbId || !tmdbId) throw new Error("not enough info");