Merged PR 282084: Remediating Azure Artifacts Configuration Issues in your Repository

As a repository owner, you must take action to protect Microsoft against potential Software Supply Chain attacks. This starts with ensuring your repository has a valid Azure Artifacts usage so you can take advantage of [Central Feed Services](https://aka.ms/cfs). We are opening this PR with a fix on known issue(s) which we have detected in your repository. Please review and approve this PR at your earliest convenience.

**This may impact the ability for pipelines and developers to install packages and build projects.**

## Address **breaking changes** before you merge:
* Confirm the suggested Feed is configured per your organization's guidelines. If changes are necessary, work with your Project Administrators to set it up correctly.  [Learn more...](https://docs.microsoft.com/en-us/azure/devops/artifacts/feeds/feed-permissions?view=azure-devops)
* Add authentication to any failing pipeline definitions. [nuget](https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/package/nuget-authenticate?view=azure-devops), [npm](https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/package/npm-authenticate?view=azure-devops).
* Reach out to developers who may need to authenticate to the feed using the [embedded_PublicPackages's Connect to feed](https://dev.azure.com/powerbi/embedded/_artifacts/feed/embedded_PublicPackages/connect) instructions in Azure Artifacts.

## This PR can make changes to .npmrc, nuget.config, and other configuration files. Please view the complete change breakdown in the PR changed files.

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For feedback or questions about this PR, please contact [Artifact Protection Services](mailto:feedprotection@microsoft.com).

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This change was automatically generated by [1ES Gardener](https://eng.ms/docs/cloud-ai-platform/devdiv/one-engineering-system-1es/1es-docs/gardener/1es-gardener) (a [MerlinBot](https://aka.ms/MerlinBot) extension) which is an initiative by the 1ES team to help repos stay up-to-date with latest tools, features, and best practices.

.npmrc

@@ -0,0 +1,4 @@
+# Auto generated file from Gardener Plugin CentralFeedServiceAdoptionPlugin
+registry=https://pkgs.dev.azure.com/powerbi/embedded/_packaging/embedded_PublicPackages/npm/registry/
+
+always-auth=true

demo/.npmrc

@@ -0,0 +1,4 @@
+# Auto generated file from Gardener Plugin CentralFeedServiceAdoptionPlugin
+registry=https://pkgs.dev.azure.com/powerbi/embedded/_packaging/embedded_PublicPackages/npm/registry/
+
+always-auth=true