Remove regex-based JS/HTML rewriting, switch to AST-based rewriting

See original GitHub issue

AST-based JS/HTML rewriting is available as an experimental feature with https://github.com/cypress-io/cypress/pull/5273

Here are the remaining tasks before it can fully replace the existing regex-based rewriting:

Validation with users - is it solving the issues we set out to fix?
(2) Rewrite all traffic (currently, only AUT’s current origin is intercepted)
- may require inlining resolvers.ts
(3) Do https://github.com/cypress-io/cypress/issues/7268 or have it be fixed by inlining resolvers.ts
- or else rewriting will break if a user visits an http:// url that redirects to https://
(4) Inject HTML via parse5 instead of regex.
(4) Resolve issue where proxy will no longer work for normal web browsing outside of Cypress frame. Possible solution: inject a stub window.Cypress.resolveWindowReference into every html page here: https://github.com/cypress-io/cypress/blob/2ed56949cb14b4630ca11ec8c4cda715aa9bfa26/packages/server/lib/util/inject.js#L1-L28
(4) Performance measurements:
- difference between rewriting with sourcemap and without
- comparison to regex-based rewriting
(4) Performance improvements:
- improve speed: add streaming parsing/rewriting of JS (parse5 handles rewriting HTML as a stream)
- mem usage: explore caching js in deferred-sourcemap-cache on filesystem
- understand how sourcemaps are cached in browser and how we can reduce unnecessary regeneration/not store old sourcemaps in RAM
(4) Add comments around injected code to help users understand - potentially include original code in a comment
(1) Need a real fix for Electron worker_threads https://github.com/electron/electron/issues/23366
(4) Fix all code TODOs from original PR: https://github.com/cypress-io/cypress/pull/5273