docs: Add Getting Help box

(cherry picked from commit 5b085a2959)

doc/Learn/Hosting/HostingOverview.md

@@ -10,6 +10,8 @@ Hosting is provided as an Uno Feature. To enable `Hosting` support in your appli
 > [!IMPORTANT]
 > This walkthrough assumes you created your app using the Single Project template. If you used a different template, please refer to our [Migrating Projects to Single Project](xref:Uno.Development.MigratingToSingleProject) documentation.
 
+[!include[getting-help](../includes/getting-help.md)]
+
 ## Building a Hosted Application
 
 Initialization of the `IHost` instance is done from the generated App.cs file of your solution. It should be created as soon as the application is launched. The following snippet uses the `CreateBuilder()` extension method to instantiate an `IApplicationBuilder` from your `Application`. It is then possible to configure the associated `IHostBuilder` to register services or use the numerous extensions offered by this library.

doc/Learn/Navigation/NavigationOverview.md

@@ -15,6 +15,8 @@ Navigation needs to encompass a range of UI concepts:
 * Displaying a <a href="https://learn.microsoft.com/uwp/api/windows.ui.xaml.controls.primitives.popup" target="_blank">`Popup`</a> or <a href="https://learn.microsoft.com/windows/apps/design/controls/dialogs-and-flyouts/flyouts" target="_blank">`Flyout`</a>
 * Prompt a <a href="https://learn.microsoft.com/uwp/api/windows.ui.xaml.controls.contentdialog" target="_blank">`ContentDialog`</a> or <a href="https://learn.microsoft.com/uwp/api/windows.ui.popups.messagedialog" target="_blank">`MessageDialog`</a>
 
+[!include[getting-help](../includes/getting-help.md)]
+
 ## Installation
 
 `Navigation` is provided as an Uno Feature. To enable `Navigation` support in your application, add `Navigation` to the `<UnoFeatures>` property in the Class Library (.csproj) file.

doc/Learn/includes/getting-help.md

@@ -0,0 +1,11 @@
+---
+uid: Uno.Extensions.GettingHelp
+---
+
+<!-- markdownlint-disable MD041 -->
+
+> [!TIP]
+> Take a look at our [common issues list](xref:Uno.UI.CommonIssues) if you're having any troubles.
+>
+> If you are experiencing issues with Uno Platform, please visit our [GitHub Discussions](https://github.com/unoplatform/uno/discussions) or [Discord Server](https://www.platform.uno/discord) - where our engineering team and community will be able to help you.
+>