Images get removed and features are duplicate when editing a badge

[mariobehling]

On the screen to create images for the transfer to the ePaper there are a number of options, e.g. import image, adjust, QR code. Duplicate features should be unified.

1. Barcode and QR code options should be added as a feature to edit an image or be portrayed on top. Instead currently if a user chooses the bar code option the previous image is deleted. This was previously discussed in detail actually.
2. It appears like different libraries have been added that partly have the same feature set. The features to edit and adjust should be unified under a single feature button and then unified in one option.

Note we discussed existing apps in past meetings. The idea was that text, barcodes, QR codes etc. should be editable and that these can be added to different parts of the screen. There are a few existing apps out there that can be used as an inspiration, e.g. see below https://play.google.com/store/apps/details?id=uni.UNI28B01D7