Fix wasm example

[JuliDi]

Close #133 by adding compiler flags

[bastibl]

Thank you! There are also the zigbee and wgpu examples, which are actually better examples. I'll try to overhaul this example as well, getting rid of the node dependency and Makefile.

[JuliDi]

Thank you, I will check these out, as well.
Is there any workaround for the missing throttle block on wasm? My impression is that the wasm examples either terminate after N samples or use an actual SDR with a limited data rate.
(Opened a discussion topic to gather some ideas for porting it here, for reference: #134)