Olaoluwa Osuntokun 247c1d8dc8 lnrpc: increase max message size for ws proxy ...

In this commit, we increase the max message size for the ws proxy. We
have a similar setting for the normal gRPC server which was tuned to be
able to support decoding `GetNetworkInfo` as the channel graph got
larger. We keep the default buffer size of 64 KB, but allow that to be
expanded to up to 4 MB (current value) to decode larger messages.

One alternative would be to modify the `Split` function to break up
larger lines into smaller ones. We'd need to double check that the
libraries at a higher level of abstraction can handle the chunks. The
scan function would look something like:
```go
splitFunc := func(data []byte, eof bool) (int, []byte, error) {
        if len(data) >= chunkSize {
                return chunkSize, data[:chunkSize], nil
        }

        return bufio.ScanLines(data, eof))
}
scanner.Split(splitFunc)
```

2023-09-18 11:32:34 -07:00

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