fix: regression with rolldown-vite and single JS bundle apps

[teemingc]

reverts #13915

This PR replaces manualChunks with inlineDynamicImports for bundling a single JS file (for 'single' and 'inline' apps) since manualChunks does not work when used with Rolldown (it's also a deprecated option). Luckily, inlineDynamicImports: true works in both Rollup and Rolldown for creating a single JS file.

Also bumps the VPS version for dev deps and resolves a todo

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[benmccann]

I'm a little hesitant about this as I'm not sure what effect removing () => ''bundle' might have. If vitejs/rolldown-vite#285 is fixed quickly, that might be the better way to address this

[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-kit-13941-svelte.vercel.app/

[teemingc]

I'm a little hesitant about this as I'm not sure what effect removing () => ''bundle' might have. If vitejs/rolldown-vite#285 is fixed quickly, that might be the better way to address this

Re rolldown/rolldown#5161 (comment) manualChunks is not recommended going forward so I’ll have to modify this PR to use manualChunks with rollup and without for rolldown

[benmccann]

Just a note for myself: rolldown/rolldown#5161 (comment) suggested to use advancedChunks: https://rolldown.rs/guide/in-depth/advanced-chunks#advanced-chunks, but I guess inlineDynamicImports can be used to the same effect: https://rollupjs.org/configuration-options/#output-inlinedynamicimports