Move branding and package install into cargo-run (#4266)

* Move branding asset fetch into cargo-run

* Move frontend npm install into cargo-run

* Rename branding::ensure to branding::setup

* Wording nits

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

tools/cargo-run/internal/download/src/main.rs

@@ -106,7 +106,6 @@ fn extract_tar_gz(body: &[u8], dir: &Path, strip: usize, include: &[String]) ->
 		}
 		entry.unpack(&target).map_err(|e| Error::Io(e, format!("unpacking '{}'", target.display())))?;
 	}
-	eprintln!("Extracted into {}", dir.display());
 	Ok(())
 }