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
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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.