Converts webpack to rspack

[elliotBraem]

rspack is a rust optimized, drop-in replacement of webpack.

• replaces webpack with rspack
• removes babel and replaces webpack packages with rspack compatible versions
• replace raw-loader with asset/source
• moves some dependencies to devDependencies (playwright, socket.io, prettier)
• moves import map script tags into body tag (rather than after body tag)
• removes webpack bundle analyzer and adds command -- this comes baked-in rspack
• benchmark current dev + prod build times
• benchmark rspack dev + prod build times
• benchmark current bundle size
• benchmark rspack bundle size
• investigate large, unnecessary packages
  • highlight.js/lib and refactor both come from react-syntax-highlighter (used in near-social-vm), and amount to 400+ KB (solved with NearBuilders/VM#feat/syntax-highlighter)
  • @ethersproject, @web3-onboard, @viem/_esm, @web3-onboard, @ledgerhq/connect-kit, @WalletConnect - worth replacing web3-onboard with wagmi?
  • why is near-wallet-selector so large? 60KB

near-bos-webcomponent	Webpack	Rspack
dev build time	20.01s	8.28 s
prod build time	48.74s	10.54 s
bundle size (stat)	15.08 MB	12.38 MB
bundle size (parsed)	8.36 MB	6.70 MB
bundle size (gzipped)	2.74 MB	2.01 MB

[petersalomonsen]

Looks great @elliotBraem . I did not know about rspack. Are you able to make the test pass too?

[elliotBraem]

@race-of-sloths include

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[elliotBraem]

@petersalomonsen, yeah! Rspack is a pretty cool project; it's a bit newer but seems to be gaining more traction because it's a drop-in replacement; it barely needed any additional config besides using the rspack versions of the plugins.

Thanks for pointing out the tests -- it looks like tests were failing to start because of a bad lockfile and then it turns out zavodil.near/widget/Lido uses an expired subgraph url, so the widget no longer works. I swapped it out for meta-pool-official.near/widget/MetaPoolStakeEth.

They're working now and this is ready to merge then.

[elliotBraem]

I created separate tickets #47 and #48 just for future reference, if it's ever worthwhile to improve on.

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