Display the image of the tool in the card view

[demeringo]

Problem

We want to dipslay an image of each tool in the card view.

Solution

1. Update the content of the logo (in source data) column to contain only a URL of the image to display
2. Configure card view to display this image.

Alternatives

Additional context or elements

• There is also a possibility to use a second image as a logo positioned just before the title. (to be handled separately See Add an icon / small logo in front of the title #51 )
• We exclude the storage of images in this repository (and prefer to point to existing external images).

[fmomo]

Even when the content of the logo field is made only of an URL (and not "filename(URL)", the logo is not displayed in the Table view...

[fmomo]

Why are we excluding image storage in the repository ?

[demeringo]

We exclude storage of images in the git repo in a first step because it means that we have to manage them.

Today there is no user friendly way to upload an image to the repo (without creating a PR using git, and we want to avoid external contributors to do so).

Having an external link allow contributors to use the form to change the target image.

That being sais, it still make sense to manage a copy of image somewhere (to avoid a broken link and also to optimize image size/compress). But I want to depriorize this for the time being.