Fix IPC on Forge 1.17.1 - 1.20.1 (#4187)

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

This reverts commit e25d726da4.

* Put game JAR and theseus JAR ahead of other JARs in classpath

* Fix 1.17-1.20 Forge by forcefully removing Multi-Release manifest entry

* Fix formatting

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Co-authored-by: Prospector <6166773+Prospector@users.noreply.github.com>

packages/app-lib/Cargo.toml

@@ -30,11 +30,11 @@ quick-xml = { workspace = true, features = ["async-tokio"] }
 enumset.workspace = true
 chardetng.workspace = true
 encoding_rs.workspace = true
-hashlink.workspace = true
 png.workspace = true
 bytemuck.workspace = true
 rgb.workspace = true
 phf.workspace = true
+itertools.workspace = true
 
 chrono = { workspace = true, features = ["serde"] }
 daedalus.workspace = true