Update guides

[roninjin10]

Update the following guides

Build guides

• [ ] Bun
• [ ] Webpack / RSPack
• [ ] Vite / Vitest / Rollup
• [ ] Esbuild
• [ ] Nobundler
• [ ] Frameworks Next / Svelte // ??

Runtime guides

• [ ] Reading and writing to contracts
• [ ] Scripting
• [ ] Optimistic updates
• [ ] Syncing
• [ ] Local-first
• [ ] Optionally using effect

[roninjin10]

Moving to linear