fix(templates): Fixing the case when wasm or auto project are generet…

[dkalinovInfra]

Description

Fixes the igb-blazor project template so that generating a WebAssembly or Auto project with a space in its name produces a working solution. Previously the .sln referenced the projects with spaces replaced by underscores (e.g. My_App\My_App.csproj) while the actual folders kept the spaces (My App\My App.csproj), so the generated solution could not load or build.

The fix follows the same approach as the built-in Microsoft Blazor template: the template sourceName is now a dotted token (IgniteBlazorApp.1), with a separate safe_namespace token (IgniteBlazorApp._1) used for C# namespaces. This stops the template engine's solution-file sanitization from rewriting the project paths, so the .sln keeps the same names as the folders, while namespaces and assembly names still resolve to valid identifiers (My_App).

Motivation / Context

Project names containing spaces produced a broken solution file with paths that did not match the generated folders, so WASM/Auto projects failed to open and build.

Type of Change (check all that apply):

• Bug fix
• New functionality
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactoring (no functional changes)
• Documentation
• Demos
• CI/CD
• Tests
• Changelog

Component(s) / Area(s) Affected:

IgniteUI.Blazor.Templates pack (igb-blazor project template)

How Has This Been Tested?

• Unit tests
• Manual testing
• Automated e2e tests

Generated six projects with dotnet new igb-blazor covering each hosting model (Server / WebAssembly / Auto) with both a spaced and an unspaced name, and verified that each restores and builds with no errors and that the .sln paths match the generated folders.

Test Configuration:

• .NET version: net10.0
• Hosting model: Server / WebAssembly / Auto
• Browser(s):
• OS: Windows

Screenshots / Recordings

Checklist:

• All relevant tags have been applied to this PR
• This PR includes unit tests covering all the new code
• This PR includes API docs for newly added methods/properties
• This PR includes general feature table updates in the root README.MD
• This PR includes CHANGELOG.MD updates for newly added functionality
• This PR contains breaking changes
• This PR includes behavioral changes and the feature specification has been updated with them
• Accessibility (ARIA, keyboard navigation, focus management) has been verified

Closes #