fix: sanitize collection overview

- Sanitize collection overview as if it were a description from AniDB, because 99% of the time it is.

- Closes #71

Shokofin/Providers/BoxSetProvider.cs

@@ -99,7 +99,7 @@ private async Task<MetadataResult<BoxSet>> GetShokoGroupMetadata(BoxSetInfo info
 
         result.Item = new BoxSet {
             Name = collection.Name,
-            Overview = collection.Shoko.Description,
+            Overview = Text.SanitizeAnidbDescription(collection.Shoko.Description),
         };
         result.Item.SetProviderId(ShokoCollectionGroupId.Name, collection.Id);
         result.HasMetadata = true;