Building & publishing MAUI Blazor hybrid apps with GitHub Actions

Adding a doc request placeholder here based on customer feedback from Blazor hybrid survey.
cc: @guardrex

Coverage concepts...

- Individual targets (webasm, Android, iOS, Mac, Windows)
- All targets
- YAML example scripts
- Reducing build times
- Cost considerations (maximizing ROI on Win/Linux/Mac runners)

We may want to enhance the MAUI docset and link to hybrid as appropriate as this already talks about each of the platforms distribution / store requirements: https://learn.microsoft.com/en-us/dotnet/maui/deployment/

Metadata:

- Physical path: [e.g., /blazor/hybrid/topic-url-segment]
- Title: Typical limit is 59 characters + the technology name ("ASP.NET Core Blazor Hybrid")
- Author: Author's GH handle
- Description: Preferred range 115-145 characters long
- Framework version:
- UID: Usually, matches the physical path [e.g., blazor/hybrid/topic-url-segment]