stop using cover.jpg and use volume cover instead

ImageViewer/ViewController.swift

@@ -227,23 +227,24 @@ class ViewController: UIViewController, UIGestureRecognizerDelegate {
                     getMetadataFromFileName(path: dir)
                 }
 
+                currentPath = dir
+
+                metadata = try JSONDecoder().decode(
+                    Metadata.self,
+                    from:
+                        Data(
+                            try String(
+                                contentsOfFile: dir.appendingPathComponent(
+                                    "metadata.json"
+                                )
+                                .path
+                            ).utf8)
+                )
+                loadLocalState()
                 comics.append(
                     Comic(
-                        cover:
-                            UIImage(
-                                contentsOfFile: dir.appendingPathComponent("cover.jpg").path)!,
-                        metadata: 
-                        try JSONDecoder().decode(
-                            Metadata.self,
-                            from:
-                                Data(
-                                    try String(
-                                        contentsOfFile: dir.appendingPathComponent(
-                                            "metadata.json"
-                                        )
-                                        .path
-                                    ).utf8)
-                        ),
+                        cover: UIImage(contentsOfFile: getImagePath(progress: ProgressIndices(v: progress.v, c: 0, i: 0)).path)!,
+                        metadata: metadata,
                         path: dir
                     ))
             }