[chore] fix generate protobuf for TypeScript

[puckpuck]

Previously make generate-protobuf only copied the demo.proto file but did not generate the protobuf classes required for IDEs to resolve imports. This adds the command to generate the protobuf classes.

[julianocosta89]

@puckpuck do we need an extra tool for this?
I keep getting:

Generating Typescript protobuf files for frontend
./node_modules/.bin/protoc-gen-ts_proto: program not found or is not executable
Please specify a program using absolute path or make sure the program is available in your PATH system variable
--ts_proto_out: protoc-gen-ts_proto: Plugin failed with status code 1.

I've tried installing https://www.npmjs.com/package/protoc-gen-ts, but it didn't solve.

[puckpuck]

@julianocosta89 you need to run npm install in the src/frontend folder first.

I can add that to the gen proto script if you feel we should have it there as well.

[julianocosta89]

@julianocosta89 you need to run npm install in the src/frontend folder first.

I can add that to the gen proto script if you feel we should have it there as well.

Either that or we could mention that step in the development doc

[puckpuck]

Let’s go with doc updates. I’ll get a PR together shortly.