[DO] Ensuring DO constructors call super if extends from DurableObject

[Oxyjun]

Summary

1. Identified 4 instances where we extend DurableObject and has a constructor, but wasn't using super().
2. Added in super(), and removed redundant lines, if any.

Screenshots (optional)

Documentation checklist

• Is there a changelog entry (guidelines)? If you don't add one for something awesome and new (however small) — how will our customers find out? Changelogs are automatically posted to RSS feeds, the Discord, and X.
• 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• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.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.

[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/docs/durable-objects/	@elithrar, @vy-ton, @joshthoward, @oxyjun, @harshil1712, @mikenomitch, @cloudflare/pcx-technical-writing, @cloudflare/workers-runtime-1

[github-actions]

Preview URL: https://ea509b1b.preview.developers.cloudflare.com
Preview Branch URL: https://jun-do-code-super-if-extends.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/durable-objects/examples/use-kv-from-durable-objects/	https://jun-do-code-super-if-extends.preview.developers.cloudflare.com/durable-objects/examples/use-kv-from-durable-objects/
https://developers.cloudflare.com/durable-objects/api/alarms/	https://jun-do-code-super-if-extends.preview.developers.cloudflare.com/durable-objects/api/alarms/
https://developers.cloudflare.com/durable-objects/examples/alarms-api/	https://jun-do-code-super-if-extends.preview.developers.cloudflare.com/durable-objects/examples/alarms-api/
https://developers.cloudflare.com/durable-objects/examples/durable-object-in-memory-state/	https://jun-do-code-super-if-extends.preview.developers.cloudflare.com/durable-objects/examples/durable-object-in-memory-state/