Fix clippy errors + lint, use turbo CI

packages/app-lib/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "@modrinth/app-lib",
+  "scripts": {
+    "build": "cargo build --release",
+    "lint": "cargo fmt --check && cargo clippy --all-targets --all-features -- -D warnings",
+    "fix": "cargo fmt && cargo clippy --fix",
+    "test": "cargo test"
+  }
+}