Implement a more robust IPC system between the launcher and client (#4159)

* Implement a more robust IPC system between the launcher and client

* Clippy fix and cargo fmt

* Switch to cached JsonReader with LENIENT parsing to avoid race conditions

* Make RPC send messages in lines

* Try to bind to either IPv4 or IPv6 and communicate version

* Move message handling into a separate function to avoid too much code in a macro

packages/app-lib/src/launcher/args.rs

@@ -16,6 +16,7 @@ use daedalus::{
 use dunce::canonicalize;
 use hashlink::LinkedHashSet;
 use std::io::{BufRead, BufReader};
+use std::net::SocketAddr;
 use std::{collections::HashMap, path::Path};
 use uuid::Uuid;
 
@@ -124,6 +125,7 @@ pub fn get_jvm_arguments(
     quick_play_type: &QuickPlayType,
     quick_play_version: QuickPlayVersion,
     log_config: Option<&LoggingConfiguration>,
+    ipc_addr: SocketAddr,
 ) -> crate::Result<Vec<String>> {
     let mut parsed_arguments = Vec::new();
 
@@ -181,6 +183,11 @@ pub fn get_jvm_arguments(
             .to_string_lossy()
     ));
 
+    parsed_arguments
+        .push(format!("-Dmodrinth.internal.ipc.host={}", ipc_addr.ip()));
+    parsed_arguments
+        .push(format!("-Dmodrinth.internal.ipc.port={}", ipc_addr.port()));
+
     parsed_arguments.push(format!(
         "-Dmodrinth.internal.quickPlay.serverVersion={}",
         serde_json::to_value(quick_play_version.server)?