Bug: Cannot show devices without firmware metadata

[elinol]

When trying to open a device from devices list by clicking on it I got this:

    ** (BadMapError) expected a map, got: nil
        (elixir 1.18.0) lib/map.ex:535: Map.get(nil, :platform, nil)
        (nerves_hub 2.0.0+42320dc7) lib/nerves_hub/deployments.ex:460: NervesHub.Deployments.eligible_deployments/1
        (nerves_hub 2.0.0+42320dc7) lib/nerves_hub_web/live/devices/show.ex:60: NervesHubWeb.Live.Devices.Show.mount/3
        (phoenix_live_view 0.20.17) lib/phoenix_live_view/utils.ex:343: anonymous fn/6 in Phoenix.LiveView.Utils.maybe_call_live_view_mount!/5
        (telemetry 1.3.0) /Users/elinol/WORK/smartrent/nerves_hub_web/deps/telemetry/src/telemetry.erl:324: :telemetry.span/3
        (phoenix_live_view 0.20.17) lib/phoenix_live_view/channel.ex:1177: Phoenix.LiveView.Channel.verified_mount/8
        (phoenix_live_view 0.20.17) lib/phoenix_live_view/channel.ex:84: Phoenix.LiveView.Channel.handle_info/2
        (stdlib 6.1.2) gen_server.erl:2345: :gen_server.try_handle_info/3
        (stdlib 6.1.2) gen_server.erl:2433: :gen_server.handle_msg/6
        (stdlib 6.1.2) proc_lib.erl:329: :proc_lib.init_p_do_apply/3

This happens to devices without firmware metadata (like those added via the UI), when trying to find eligible deployments for that device