Create workflow for monitoring bundle size of landing page and "main app"

[seveibar]

There are two vite entrypoints, one for the "main app" and one for the landing page.

We want to monitor these bundle sizes to make sure they don't become excessive.

Unlike tscircuit/core, these have to monitored somewhat continuously on every PR because an accidental import in the wrong file can cause the bundle size to dramatically increase

An alternative to monitoring so much is to change large imports like Typescript so that they load directly in a <script /> tag, this makes it easier to control for the bundle size since there are basically no large imports. You then avoid placing the typescript <script /> tag on the landing.html page