Add a set of 5 images on seeding images

[brunobuddy]

When we create an image property and we see, the image appears as in the screenshot.

@SebConejo you can create a set of images and I will randomize the seed value to have different values. You will need to add 2 sizes for each image (list and detail) : packages/case/server/assets/seed/dummy-image-thumbnail.jpg and packages/case/server/assets/seed/dummy-image-large.jpg

You can create dummy-image1, dummy-image2, etc. and assign me the task