Add draft indicator, filter drafts, show issue count

CHDataManagement/Model/FileType.swift

@@ -180,6 +180,15 @@ enum FileType: String {
         category == .image
     }
 
+    var generatesImageVersions: Bool {
+        switch self {
+        case .jpg, .png, .avif, .webp, .tiff:
+            return true
+        default:
+            return false
+        }
+    }
+
     var isVideo: Bool {
         category == .video
     }