wasm esbuild checkups

The size esbuild wasm build is 8.4MB

It's slow to start up.

I needed at least more than 2.2 secs to intialize it.

base64 wasm string + browser esbuild version was the fastest among things I tested.

Official version which the author published to deno.land/x was slower. It takes more than 5 seconds even after the executable is cached in the system's cache directory.