[bot] Add Vim mode, /goal command, and Copilot app MCP/connector updates

[github-actions]

Summary

Checked recent GitHub Copilot updates (CLI changelog v1.0.83/1.0.84, Copilot app changelog v1.1.15) against the Learning Hub and added a few small documentation updates for newly released features that weren't yet covered.

New features/changes found

• Vim mode (Copilot CLI v1.0.84+) — /vim command or editorMode: vim setting for modal editing in the composer.
• /goal command (Copilot app v1.1.15+) — sets a persistent objective for autopilot to work towards across multiple continuation turns in a local session.
• MCP server install via deep link (Copilot app v1.1.15+) — opens a prefilled review form for confirmation before adding a server.
• Power BI MCP connector (Copilot app v1.1.15+) — added to the connector catalog with hosted and local server options.
• Attach images/videos to PR descriptions (Copilot app v1.1.15+) — via paste, drag, or file picker, in addition to the existing link action.

Sections updated

• website/src/content/docs/learning-hub/copilot-configuration-basics.md — added editorMode setting and a Vim mode callout.
• website/src/content/docs/learning-hub/github-copilot-app.md — added /goal command, MCP deep-link install, Power BI connector, and PR media attachment notes; bumped lastUpdated.

Sources

• https://raw.githubusercontent.com/github/copilot-cli/main/changelog.md (v1.0.83, v1.0.84 pre-releases)
• https://raw.githubusercontent.com/github/app/main/changelog.md (v1.1.15)

Other pages (MCP servers, custom agents, glossary, etc.) were already up to date with recent CLI releases (through v1.0.83) and required no changes. cli-for-beginners was intentionally left untouched per instructions.

Warning

Firewall blocked 2 domains

The following domains were blocked by the firewall during workflow execution:

• code.visualstudio.com
• github.blog

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "code.visualstudio.com"
    - "github.blog"

See Network Configuration for more information.

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