[dev-v5] Remove GitHub Copilot custom instructions and related references from documentation

[AClerbois]

Pull Request

📖 Description

This pull request removes the GitHub Copilot migration instructions and related documentation from the FluentUI Blazor demo project. The main goal is to clean up the codebase by eliminating Copilot-specific content and references that are no longer needed for the migration process.

Documentation and Copilot instruction removal:

• Deleted the CopilotInstructionsContent.md documentation file, which provided custom instructions and setup guidance for using GitHub Copilot during migration.
• Removed the inclusion of Copilot instructions from the migration guide (MigrationVersion5.md), so users will no longer see Copilot-specific migration help in the documentation.
• Deleted the actual copilot-instructions.md file from the wwwroot directory, which contained detailed migration rules and suggestions for Copilot.

Project configuration cleanup:

• Removed the line from the project file (FluentUI.Demo.Client.csproj) that excluded copilot-instructions.md from being embedded as a resource, since the file has been deleted.

✅ Checklist

General

• I have added tests for my changes.
• I have tested my changes.
• I have updated the project documentation to reflect my changes.
• I have read the CONTRIBUTING documentation and followed the standards for this project.

Component-specific

• I have added a new component
• I have added Unit Tests for my new component
• I have modified an existing component
• I have validated the Unit Tests for an existing component

⏭ Next Steps

[Copilot]

Pull request overview

This pull request removes GitHub Copilot migration-specific documentation and custom instructions from the FluentUI Blazor demo project. The changes clean up v3/v4 to v5 migration assistance content that is no longer needed, removing both the custom Copilot instructions file and its related documentation while preserving unrelated Copilot references in MCP (Model Context Protocol) documentation.

Changes:

• Deleted the copilot-instructions.md file containing v3/v4 to v5 migration rules for GitHub Copilot
• Removed the CopilotInstructionsContent.md documentation explaining how to use custom Copilot instructions for migration
• Removed the Copilot migration section from the main MigrationVersion5.md guide
• Cleaned up the project file by removing the exclusion rule for the deleted copilot-instructions.md file

Reviewed changes

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

File	Description
examples/Demo/FluentUI.Demo.Client/wwwroot/copilot-instructions.md	Deleted file containing migration rules and component change mappings for GitHub Copilot custom instructions
examples/Demo/FluentUI.Demo.Client/Documentation/GetStarted/Migration/CopilotInstructionsContent.md	Deleted documentation file explaining how to set up and use GitHub Copilot custom instructions for migration
examples/Demo/FluentUI.Demo.Client/Documentation/GetStarted/MigrationVersion5.md	Removed the INCLUDE statement that referenced the deleted CopilotInstructionsContent section
examples/Demo/FluentUI.Demo.Client/FluentUI.Demo.Client.csproj	Removed the EmbeddedResource exclusion for the deleted copilot-instructions.md file

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