Add --new-session to bwrap invocation

src/sandbox.rs

@@ -43,6 +43,7 @@ pub fn build_command(config: &SandboxConfig) -> Result<Command, SandboxError> {
         add_ro_bind(&mut cmd, path)?;
     }
 
+    cmd.arg("--new-session");
     cmd.arg("--die-with-parent");
     cmd.arg("--chdir").arg(&config.chdir);