[PowerPoint] (Overview) Add article about object model

[ElizabethSamuel-MSFT]

No description provided.

[learn-build-service-prod]

Learn Build status updates of commit f17742f:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/powerpoint/core-concepts.md	✅Succeeded	View
docs/toc.yml	✅Succeeded	View

For more details, please refer to the build report.

[Copilot]

Pull Request Overview

This PR introduces a new conceptual article on the PowerPoint JavaScript object model and adds it to the PowerPoint TOC.

• Creates core-concepts.md detailing key PowerPoint object model components.
• Updates docs/toc.yml to include the new article in the PowerPoint section.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
docs/toc.yml	Inserts a new TOC entry for the object model
docs/powerpoint/core-concepts.md	Adds a concept article on the PowerPoint object model

Comments suppressed due to low confidence (1)

docs/toc.yml:925

• Indentation for the new TOC entry doesn’t match existing items. Align it with sibling entries by adding two more spaces before the hyphen.

    - name: PowerPoint object model

[learn-build-service-prod]

Learn Build status updates of commit a41e157:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/powerpoint/core-concepts.md	✅Succeeded	View
docs/toc.yml	✅Succeeded	View

For more details, please refer to the build report.

[davidchesnut]

couple of suggestions.

[davidchesnut]

Suggested change

- [Office.Context](/javascript/api/office/office.context): The `Context` object represents the runtime environment of the add-in and provides access to key objects of the API. It consists of presentation configuration details such as `contentLanguage` and `officeTheme` and also provides information about the add-in's runtime environment such as `host` and `platform`. Additionally, it provides the `requirements.isSetSupported()` method, which you can use to check whether a specified requirement set is supported by the PowerPoint application where the add-in is running.

- [Office.Context](/javascript/api/office/office.context): The `Office.Context` object represents the runtime environment of the add-in and provides access to key objects of the API. It consists of presentation configuration details such as `contentLanguage` and `officeTheme` and also provides information about the add-in's runtime environment such as `host` and `platform`. Additionally, it provides the `requirements.isSetSupported()` method, which you can use to check whether a specified requirement set is supported by the PowerPoint application where the add-in is running.

[davidchesnut]

I'm not sure why context and document are shown out of all the things in the Office namespace. Are they more important, or typically used compared to the others? Would be good to have something like "These objects are commonly used..."