Icon placeholder during export/import an sj experiment file

[VKin-Arduino]

Describe the bug A clear and concise description of what the bug is.

When downloading an experiment from a device and then exporting that into another device the sensors icons are automatically replaced by the general icon.

To Reproduce Steps to reproduce the behavior:

1. Download the experiment
2. Share it
3. Import the experiment from another device (Android iOS)
4. see the sensor cards recording values

Expected behavior A clear and concise description of what you expected to happen.

The sensors should be imported with the relevant icon as it happens already with the data, and sensor label

Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6] iOS, and Android
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context Add any other context about the problem here.