[Housekeeping] Add Controls.ManualTests project

[kubaflo]

Added the Controls.ManualTests project to the solution and updated SolutionConfigurationPlatforms and ProjectConfigurationPlatforms to include Debug/Release configurations for x64 and x86 platforms. This improves platform support and enables manual testing for controls.

[github-actions]

🚀 Dogfood this PR with:

⚠️ WARNING: Do not do this without first carefully reviewing the code of this PR to satisfy yourself it is safe.

curl -fsSL https://raw.githubusercontent.com/dotnet/maui/main/eng/scripts/get-maui-pr.sh | bash -s -- 33094

Or

• Run remotely in PowerShell:

iex "& { $(irm https://raw.githubusercontent.com/dotnet/maui/main/eng/scripts/get-maui-pr.ps1) } 33094"

[dotnet-policy-service]

Hey there @@kubaflo! Thank you so much for your PR! Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

[Copilot]

Pull request overview

This PR adds the Controls.ManualTests project to the VS Code solution file and introduces x64 and x86 platform configurations across all projects. While adding the ManualTests project is a straightforward housekeeping task, the addition of x64/x86 platform configurations deviates from established patterns in other MAUI solution files.

• Addition of Controls.ManualTests project reference at src\Controls\tests\ManualTests\Controls.ManualTests.csproj
• Introduction of x64 and x86 platform configurations (Debug and Release) for all 107 projects in the solution
• All new platform configurations map to "Any CPU" builds

[Copilot]

The addition of x64 and x86 platform configurations to all projects in this solution is inconsistent with other MAUI solution files. The main Microsoft.Maui.sln and Microsoft.Maui-dev.sln only use "Any CPU" configurations.

For .NET MAUI projects, platform targeting is controlled through the TargetFrameworks property in the project files (e.g., net9.0-android, net9.0-ios), not through solution platform configurations. All the x64 and x86 configurations in this PR simply map to "Any CPU" builds (ActiveCfg = Debug|Any CPU), making them redundant.

Consider removing the x64 and x86 platform configurations to maintain consistency with other solution files in the repository.

Suggested change

	Debug|x64 = Debug|x64
	Debug|x86 = Debug|x86
	Release|Any CPU = Release|Any CPU
	Release|x64 = Release|x64
	Release|x86 = Release|x86
	EndGlobalSection
	GlobalSection(ProjectConfigurationPlatforms) = postSolution
	{95BA42B5-B00E-4986-B9B5-517140378452}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Debug|Any CPU.Build.0 = Debug|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Debug|x64.ActiveCfg = Debug|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Debug|x64.Build.0 = Debug|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Debug|x86.ActiveCfg = Debug|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Debug|x86.Build.0 = Debug|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Release|Any CPU.ActiveCfg = Release|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Release|Any CPU.Build.0 = Release|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Release|x64.ActiveCfg = Release|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Release|x64.Build.0 = Release|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Release|x86.ActiveCfg = Release|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Release|x86.Build.0 = Release|Any CPU
	Release|Any CPU = Release|Any CPU
	EndGlobalSection
	GlobalSection(ProjectConfigurationPlatforms) = postSolution
	{95BA42B5-B00E-4986-B9B5-517140378452}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Debug|Any CPU.Build.0 = Debug|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Release|Any CPU.ActiveCfg = Release|Any CPU
	{95BA42B5-B00E-4986-B9B5-517140378452}.Release|Any CPU.Build.0 = Release|Any CPU