[DO] Adding main in Wrangler config files.

[Oxyjun]

Summary

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Documentation checklist

• The documentation style guide has been adhered to.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• Files which have changed name or location have been allocated redirects.

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PR Change Summary

Added the 'main' entry in Wrangler configuration files across multiple examples and tutorials to specify the entry point for Durable Objects.

• Included 'main' entry in the Wrangler configuration for various Durable Object examples.
• Updated documentation to reflect changes in the Wrangler configuration file structure.

Modified Files

• src/content/docs/durable-objects/examples/alarms-api.mdx
• src/content/docs/durable-objects/examples/build-a-counter.mdx
• src/content/docs/durable-objects/examples/build-a-rate-limiter.mdx
• src/content/docs/durable-objects/examples/durable-object-in-memory-state.mdx
• src/content/docs/durable-objects/examples/durable-object-ttl.mdx
• src/content/docs/durable-objects/examples/use-kv-from-durable-objects.mdx
• src/content/docs/durable-objects/examples/websocket-hibernation-server.mdx
• src/content/docs/durable-objects/examples/websocket-server.mdx
• src/content/docs/durable-objects/tutorials/build-a-seat-booking-app/index.mdx

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[github-actions]

Preview URL: https://6258dcc9.preview.developers.cloudflare.com
Preview Branch URL: https://jun-do-jsonc-example-update.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/durable-objects/tutorials/build-a-seat-booking-app/	https://jun-do-jsonc-example-update.preview.developers.cloudflare.com/durable-objects/tutorials/build-a-seat-booking-app/
https://developers.cloudflare.com/durable-objects/examples/alarms-api/	https://jun-do-jsonc-example-update.preview.developers.cloudflare.com/durable-objects/examples/alarms-api/
https://developers.cloudflare.com/durable-objects/examples/build-a-counter/	https://jun-do-jsonc-example-update.preview.developers.cloudflare.com/durable-objects/examples/build-a-counter/
https://developers.cloudflare.com/durable-objects/examples/build-a-rate-limiter/	https://jun-do-jsonc-example-update.preview.developers.cloudflare.com/durable-objects/examples/build-a-rate-limiter/
https://developers.cloudflare.com/durable-objects/examples/durable-object-in-memory-state/	https://jun-do-jsonc-example-update.preview.developers.cloudflare.com/durable-objects/examples/durable-object-in-memory-state/
https://developers.cloudflare.com/durable-objects/examples/durable-object-ttl/	https://jun-do-jsonc-example-update.preview.developers.cloudflare.com/durable-objects/examples/durable-object-ttl/
https://developers.cloudflare.com/durable-objects/examples/use-kv-from-durable-objects/	https://jun-do-jsonc-example-update.preview.developers.cloudflare.com/durable-objects/examples/use-kv-from-durable-objects/
https://developers.cloudflare.com/durable-objects/examples/websocket-hibernation-server/	https://jun-do-jsonc-example-update.preview.developers.cloudflare.com/durable-objects/examples/websocket-hibernation-server/
https://developers.cloudflare.com/durable-objects/examples/websocket-server/	https://jun-do-jsonc-example-update.preview.developers.cloudflare.com/durable-objects/examples/websocket-server/