Fix missing namespace

Author: aritchie

Shiny.Extensions.Localization.Generator.Tests/LocalizationSourceGeneratorTests.EndToEndTest_rootNamespace=MyTest_projectName=MyTest.Core_generateInternal=False#ServiceCollectionExtensions.g.verified.cs

@@ -1,4 +1,9 @@
 //HintName: ServiceCollectionExtensions.g.cs
+// <auto-generated />
+// This file is auto-generated by Shiny.Extensions.Localization.Generator
+// Do not edit this file directly, instead edit the .resx files in your project.
+using global::Microsoft.Extensions.DependencyInjection;
+
 namespace MyTest;
 
 public static class ServiceCollectionExtensions_Generated

Shiny.Extensions.Localization.Generator.Tests/LocalizationSourceGeneratorTests.EndToEndTest_rootNamespace=null_projectName=MyTest.Library_generateInternal=False#ServiceCollectionExtensions.g.verified.cs

@@ -1,4 +1,9 @@
 //HintName: ServiceCollectionExtensions.g.cs
+// <auto-generated />
+// This file is auto-generated by Shiny.Extensions.Localization.Generator
+// Do not edit this file directly, instead edit the .resx files in your project.
+using global::Microsoft.Extensions.DependencyInjection;
+
 namespace MyTest.Library;
 
 public static class ServiceCollectionExtensions_Generated

Shiny.Extensions.Localization.Generator.Tests/LocalizationSourceGeneratorTests.EndToEndTest_rootNamespace=null_projectName=MyTest.Library_generateInternal=True#ServiceCollectionExtensions.g.verified.cs

@@ -1,4 +1,9 @@
 //HintName: ServiceCollectionExtensions.g.cs
+// <auto-generated />
+// This file is auto-generated by Shiny.Extensions.Localization.Generator
+// Do not edit this file directly, instead edit the .resx files in your project.
+using global::Microsoft.Extensions.DependencyInjection;
+
 namespace MyTest.Library;
 
 internal static class ServiceCollectionExtensions_Generated

Shiny.Extensions.Localization.Generator.Tests/LocalizationSourceGeneratorTests.EndToEndTest_rootNamespace=null_projectName=MyTest_generateInternal=False#ServiceCollectionExtensions.g.verified.cs

@@ -1,4 +1,9 @@
 //HintName: ServiceCollectionExtensions.g.cs
+// <auto-generated />
+// This file is auto-generated by Shiny.Extensions.Localization.Generator
+// Do not edit this file directly, instead edit the .resx files in your project.
+using global::Microsoft.Extensions.DependencyInjection;
+
 namespace MyTest;
 
 public static class ServiceCollectionExtensions_Generated

Shiny.Extensions.Localization.Generator.Tests/LocalizationSourceGeneratorTests.cs

@@ -34,7 +34,7 @@ public async Task EndToEndTest(string? rootNamespace, string projectName, bool g
         resource1.AddString("MyNamespace.MyEnum.MyEnumValue", "This is an enum value");
 
         GeneratorDriver driver = CSharpGeneratorDriver.Create(
-            new[] { generator },
+            [generator],
             optionsProvider: options,
             additionalTexts: ImmutableArray.Create<AdditionalText>(resource1)
         );

Shiny.Extensions.Localization.Generator/LocalizationSourceGenerator.cs

@@ -129,20 +129,16 @@ bool useInternalAccessor
 	}
 
 
-	static string SafePropertyKey(string keyName)
-	{
-		return keyName
-			.Replace(".", "_")
-			.Replace("-", "_")
-			.Replace(" ", "_");
-	}
+	static string SafePropertyKey(string keyName) => keyName
+		.Replace(".", "_")
+		.Replace("-", "_")
+		.Replace(" ", "_");
 
 
 	static string GenerateServiceCollectionRegistration(string rootNamespace, IEnumerable<string> generatedTypes, bool useInternalAccessor)
 	{
 		var accessor = useInternalAccessor ? "internal" : "public";
 		var sb = new StringBuilder()
-			
 			.AppendLine("// <auto-generated />")
 			.AppendLine("// This file is auto-generated by Shiny.Extensions.Localization.Generator")
 			.AppendLine("// Do not edit this file directly, instead edit the .resx files in your project.")