[release/10.0.2xx] [dotnet-cli] prompt for target framework using Spectre.Console

[jonathanpeppers]

Backport of: #51509

Implements the first part of the spec mentioned in:

sdk/documentation/specs/dotnet-run-for-maui.md

Lines 35 to 46 in 522c88a

	* "Pre-run evaluation"
	* If the project is multi-targeted, containing the
	`$(TargetFrameworks)` property _and_ that property has more than
	one item in it, and `-f` was not supplied...
	* Prompt the user to select from a list of the
	`$(TargetFrameworks)`
	* Non-interactive mode will give a friendly error message,
	suggesting to supply the `-f` property, listing available target
	frameworks in the project.

Add interactive target framework selection to dotnet run

When running a multi-targeted project without specifying --framework, dotnet run now:

• Prompts interactively (using Spectre.Console) to select a framework with arrow keys

• Shows a formatted error list in non-interactive mode with available frameworks

• Handles selection early before project build/evaluation

• Removes redundant multi-TFM error checking from ThrowUnableToRunError()

• Adds a few unit tests to validate these changes.

Other changes:

• Pin darc to "1.1.0-beta.25514.2"