Update Roslyn analyzer tutorial for modern Visual Studio project creation (#51760)

* Initial plan

* Update solution creation instructions to use search instead of navigation path

Co-authored-by: meaghanlewis <10103121+meaghanlewis@users.noreply.github.com>

* update instructions and do a freshness pass

* Fix spelling errors and UI element formatting

Co-authored-by: meaghanlewis <10103121+meaghanlewis@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: meaghanlewis <10103121+meaghanlewis@users.noreply.github.com>
Co-authored-by: Meaghan Osagie <mosagie@microsoft.com>

Author: Copilot