[Templates] Add comments to help developers publish MacCatalyst apps on App Store

dotnet/Templates/Microsoft.MacCatalyst.Templates/maccatalyst/csharp/Entitlements.plist

@@ -2,5 +2,11 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
     <dict>
+        <!-- Uncomment the following lines when preparing for release builds.
+        <key>com.apple.security.app-sandbox</key>
+        <true/>
+        <key>com.apple.security.network.client</key>
+        <true/>
+        -->
     </dict>
 </plist>

dotnet/Templates/Microsoft.MacCatalyst.Templates/maccatalyst/csharp/Info.plist

@@ -10,6 +10,11 @@
     <string>1.0</string>
     <key>CFBundleVersion</key>
     <string>1.0</string>
+    <key>ITSAppUsesNonExemptEncryption</key>
+    <false/>
+    <!--Specify the category for your app here.-->
+    <key>LSApplicationCategoryType</key>
+    <string>public.app-category.productivity</string>
     <key>UIDeviceFamily</key>
     <array>
         <integer>2</integer>

dotnet/Templates/Microsoft.MacCatalyst.Templates/maccatalyst/csharp/MacCatalystApp1.csproj

@@ -1,11 +1,56 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>net7.0-maccatalyst</TargetFramework>
+    <!--Both architectures:
+    <RuntimeIdentifier>maccatalyst-x64;maccatalyst-arm64</RuntimeIdentifier>-->
+    <!--Only x64. Please note that selecting only arm64 is not permitted.-->
     <RuntimeIdentifier>maccatalyst-x64</RuntimeIdentifier>
+    <OutputType>Exe</OutputType>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>true</ImplicitUsings>
+    <SupportedOSPlatformVersion>14.2</SupportedOSPlatformVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <CreatePackage>false</CreatePackage>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <CreatePackage>false</CreatePackage>
+  </PropertyGroup>
+
+  <!--
+  For Debug: (Note: Replace placeholder information before building)
+  <PropertyGroup Condition="$(TargetFramework.Contains('-maccatalyst')) and '$(Configuration)' == 'Debug'">
+    <MtouchLink>none</MtouchLink>
+    <EnableCodeSigning>false</EnableCodeSigning>
+    <ProvisionType>Manual</ProvisionType>
+    <CreatePackage>false</CreatePackage>
+    <EnablePackageSigning>true</EnablePackageSigning>
+    <CodesignKey>Apple Distribution: YOURNAME (*******)</CodesignKey>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <CodesignProvision>YOUR PROFILE NAME</CodesignProvision>
+    <PackageSigningKey>3rd Party Mac Developer Installer: YOURNAME (*******)</PackageSigningKey>
+    <UseHardenedRuntime>false</UseHardenedRuntime>
+  </PropertyGroup>
+  -->
+
+  <!--
+  For Release: (Note: Replace placeholder information before building)
+  <PropertyGroup Condition="$(TargetFramework.Contains('-maccatalyst')) and '$(Configuration)' == 'Release'">
+    <MtouchLink>Full</MtouchLink>
     <RootNamespace Condition="'$(name)' != '$(name{-VALUE-FORMS-}safe_namespace)'">MacCatalystApp1</RootNamespace>
     <OutputType>Exe</OutputType>
     <Nullable>enable</Nullable>
     <ImplicitUsings>true</ImplicitUsings>
     <SupportedOSPlatformVersion>minOSVersion</SupportedOSPlatformVersion>
-  </PropertyGroup>
-</Project>
+    <EnableCodeSigning>True</EnableCodeSigning>
+    <ProvisionType>Manual</ProvisionType>
+    <CreatePackage>true</CreatePackage>
+    <EnablePackageSigning>true</EnablePackageSigning>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <CodesignKey>Apple Distribution: YOURNAME (*******)</CodesignKey>
+    <CodesignProvision>YOUR PROFILE NAME</CodesignProvision>
+    <PackageSigningKey>3rd Party Mac Developer Installer: YOURNAME (*******)</PackageSigningKey>
+    <UseHardenedRuntime>true</UseHardenedRuntime>
+  </PropertyGroup>-->
+
+</Project>