Update template references to Duende.Templates

Replaced all references from `Duende.IdentityServer.Templates` to the new `Duende.Templates` package. Updated NuGet links, source code references, and installation commands accordingly to ensure consistency across the documentation.

Author: khalidabuhakmeh

IdentityServer/v7/docs/content/overview/packaging.md

@@ -19,14 +19,16 @@ as a starting point for your modifications.
 ### Templates
 Contains templates for the dotnet CLI.
 
-* NuGet [package](https://www.nuget.org/packages/Duende.IdentityServer.Templates)
-* [source code](https://github.com/DuendeSoftware/IdentityServer.Templates)
+* NuGet [package](https://www.nuget.org/packages/Duende.Templates)
+* [source code](https://github.com/DuendeSoftware/products/tree/main/templates)
 
 You can install the templates using the following command:
 
 ```
-dotnet new -i Duende.IdentityServer.Templates
+dotnet new -i Duende.Templates
 ```
 
 ### Source Code
-You can find the Duende IdentityServer source code on [GitHub](https://github.com/duendesoftware/IdentityServer).
+You can find the Duende IdentityServer source code on [GitHub][source].
+
+[source]: https://github.com/DuendeSoftware/products/tree/main/templates

IdentityServer/v7/docs/content/quickstarts/0_overview.md

@@ -20,7 +20,7 @@ Every quickstart has a reference solution - you can find the code in the [sample
 The first thing you should do is install our templates:
 
 ```
-dotnet new install Duende.IdentityServer.Templates
+dotnet new install Duende.Templates
 ```
 
 They will be used as a starting point for the various tutorials.

IdentityServer/v7/docs/content/quickstarts/1_client_credentials.md

@@ -37,7 +37,7 @@ the quickstarts. To install the templates open a console window and type the
 following command:
 
 ```console
-dotnet new install Duende.IdentityServer.Templates
+dotnet new install Duende.Templates
 ```
 
 ## Create the Solution and IdentityServer Project