Not enough documentation for importing DelverLen backup file.

[Ultra-KVL]

I created a backup file of my delver lens collection. I then start the electron app and trying to import the collecting. Reading the code it looks like collection.reload is called and is trying to parse out the cards based on them each being a file. I have not yet found the path for delver.js to be evoked.

Any additional information on the needed steps would be a welcome addition to the README

[shagu]

The lastest release has an issue importing a delver lens backup file if the metadata for delver hasn't been fetched already. As of now, it tries to already load the delver metadata while the files are not yet written to disk. Restarting the application after the data was loaded is a workaround. However, that problem is already fixed on the master branch and I'll release a new version soon (probably tomorrow).

The workflow is usually like this:

1. Create or select a folder where your collection is (or where it should be)
2. Click the Import Delver Lens Backup button
3. Select the backup file

select-folder-import-delver.webm

(for reference, it's that commit which isn't yet in the latest release: 76ecd1d)

[Ultra-KVL]

Pull the latest and it did work. Thanks for the video it was very helpful. Love your project so far