[Bug]: Add possibility to define platform on `lenra dev`

What happened?

When trying to run an application locally using lenra dev on MacOS and when the application is using a reference image only compiled in linux/amd64 I get an error telling me that my platform is not recognised when running the app.

When specifying by hand that I want to use this image using linux/amd64 it works.

We might need to add a way to specify the platform to use. A better solution to begin with would be to use linux/amd64 by default, forcing all devices to emulate for this platform.

What browsers are you seeing the problem on?

No response

Version

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Relevant log output

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