Improve world-writable scan (#6381)

1. scan many more directories since it's much faster than the original
implementation
2. limit overall scan time to 2s
3. skip some directories that are noisy - ApplicationData, Installer,
etc.

codex-rs/windows-sandbox-rs/Cargo.toml

@@ -11,6 +11,7 @@ path = "src/lib.rs"
 anyhow = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
+dunce = "1.0"
 [dependencies.rand]
 version = "0.8"
 default-features = false