This fixes RTS build to use `esbuild`.
1. This means the whole `node_modules` won't need to be copied over to
the Docker image. There's unused insignifant _test_ files in there, that
don't add any value, but are causing irrelevant CVEs to be reported on
our Docker image. See example at
https://github.com/appsmithorg/appsmith-ee/pull/2349.
2. Much faster. Not that RTS build is our slow point, but still. Perhaps
we can move client to `esbuild` too. 🙂
## Why are we doing this?
The current method of loading RTS into the Docker image means that _all_
contents of _all_ dependencies are copied over. The whole
`node_modules`. But several of these packages include _test_ files too,
that aren't needed at runtime at all. One of such test files is creating
a false alert for a CVE on our Docker image. Has absolutely no relevance
and impact, but it's there.
To fix that, I [had to `rm -rf /opt/appsmith/rts/node_modules/*/test` in
the Docker
image](https://github.com/appsmithorg/appsmith-ee/pull/2349/files). This
felt very hacky, and very dirty. It felt like we're introducing more
debt and more duct tape around the current build process.
So, `esbuild`.
## Where is `esbuild` coming from?
We're using `esbuild` v0.18.20 only, while the latest is v0.19.3. We
need to update `design-system`'s storybook dependency, I think, to get a
more recent version of `esbuild`. I'm yet to figure this out and can use
some help. 🙂