Be able to receive and send messages in test environment

[Benjamin-Loison]

Using a supported version?

• [X] I have searched searched open and closed issues for duplicates.
• [X] I am using Signal-Desktop as provided by the Signal team, not a 3rd-party package.

Overall summary

See Signal-Desktop/blob/b36604bf3103bd31b0fc902d5b9a50d66f8f5e0a/CONTRIBUTING.md.

First what about a fake account for testing with production binary?

https://signal.org/download/

What about Waydroid to fake a phone usage?

Should try modifying Waydroid to test the other architecture.

Related to #25.

Steps to reproduce

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Expected result

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Actual result

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Screenshots

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Signal version

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Operating system

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Version of Signal on your phone

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Link to debug log

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