Skip install script if already installed (#91)
Skip install script if already installed (#91)

The install script sometimes throws error on subsequent `yarn` installs since `yarn`
seems to invoke install scripts when it is shuffling things around. It also causes
issue for CI where the `node_modules` directory is cached across builds.
evanw/esbuild,evanw/esbuild,evanw/esbuild,evanw/esbuild