Fix issue with deleting folders

lib/folder_service.dart

@@ -34,6 +34,7 @@ class FolderSharingService {
       var currentFolders = await FolderDB.instance.getFolders();
       for (final currentFolder in currentFolders) {
         if (!folders.contains(currentFolder)) {
+          _logger.info("Folder deleted: " + currentFolder.toString());
           await PhotoDB.instance.deletePhotosInRemoteFolder(currentFolder.id);
           await FolderDB.instance.deleteFolder(currentFolder);
         }

lib/models/folder.dart

@@ -58,22 +58,11 @@ class Folder {
   bool operator ==(Object o) {
     if (identical(this, o)) return true;
 
-    return o is Folder &&
-        o.id == id &&
-        o.name == name &&
-        o.owner == owner &&
-        o.deviceFolder == deviceFolder &&
-        setEquals(o.sharedWith, sharedWith) &&
-        o.updateTimestamp == updateTimestamp;
+    return o is Folder && o.id == id;
   }
 
   @override
   int get hashCode {
-    return id.hashCode ^
-        name.hashCode ^
-        owner.hashCode ^
-        deviceFolder.hashCode ^
-        sharedWith.hashCode ^
-        updateTimestamp.hashCode;
+    return id.hashCode;
   }
 }