Update Appx manifest with new cap and fix statically linking to vcruntime

[SteveL-MSFT]

PR Summary

Fixes some issues:

• use hybrid-crt for Windows build
• grammar fixes
• remove redundant check for az
• add new cap in Appx manifest
• move RUSTFLAGS in build to cargo.toml
• remove unnecessary static_vcruntime crate

Context

Fix #1243
Fix #1244

[Copilot]

Pull Request Overview

This PR includes code cleanup and configuration improvements across build scripts, CI/CD pipelines, and project templates.

• Simplifies Azure CLI authentication logic by removing redundant command existence checks
• Fixes URL formatting issue in Azure DevOps pipeline
• Corrects spelling error in issue template
• Updates Cargo configuration for Windows MSVC targets with explicit CRT linking flags

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
build.ps1	Removes redundant nested Azure CLI command check, streamlining authentication flow
.pipelines/DSC-Official.yml	Fixes malformed Azure DevOps organization URL (removes double slash)
.github/ISSUE_TEMPLATE/Feature_Request.yml	Corrects duplicate word in placeholder text
.cargo/config.toml	Expands rustflags configuration with explicit Windows CRT library linking arguments

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[DHowett]

Whoops, you still have one of these in build.helpers.psm1 as well. Line 753-754

[DHowett]

BUILD:   Performing setup steps::Configuring Rust environment
VERBOSE: Caching current rust environment variables...
VERBOSE: No Rust environment variables defined
VERBOSE: Setting RUSTFLAGS to '-Dwarnings'

[DHowett]

It's perfect. Not a DLL dependency out of place.