docs: fix grammar and typos in core documentation

[AradhyaTiwari10]

This PR fixes a few minor grammar and typo issues in the core documentation files:

• Fixed missing "to" on the home page hero section.
• Removed a double article ("a the") in the Concepts Overview.
• Fixed possessive "its" vs "it's" in the SignalR reaction documentation.

These changes improve the overall clarity and professionalism of the documentation.

[Copilot]

Pull request overview

This PR updates the Drasi documentation to improve clarity by correcting a few grammar/typo issues across core pages, but it also introduces a new root-level package-lock.json that doesn’t appear to match the repo’s existing Node setup.

Changes:

• Fixes grammar on the docs home page hero subtitle (“easy to build…”).
• Fixes wording in Concepts Overview (“a the” → “the”) and corrects “it’s” → “its” in the SignalR reaction docs.
• Adds a new root-level package-lock.json (likely unintended given existing docs/ and tests/ lockfiles).

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated no comments.

File	Description
package-lock.json	Adds a new root npm lockfile (potentially accidental / inconsistent with repo structure).
docs/content/drasi-kubernetes/how-to-guides/configure-reactions/configure-signalr-reaction/_index.md	Fixes possessive “its” wording in SignalR client documentation.
docs/content/concepts/overview/_index.md	Fixes a duplicated article in the Continuous Queries explanation.
docs/content/_index.md	Fixes missing “to” in the homepage hero subtitle.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[AradhyaTiwari10]

I've just pushed an update to remove the unintended root level package lock.json file. This was accidentally generated during my local environment setup and is not part of the documentation changes. The PR is now clean and ready for review!

[agentofreality]

Hi @AradhyaTiwari10,

Please remove the updated reference to the newer branch of the docsy theme.

Thanks.