Resolving warnings and treating warnings as errors in WinUI project. (#824)

Wino.SourceGenerators/Translator/TranslatorGenerator.cs

@@ -43,7 +43,7 @@ namespace Wino.Core.SourceGeneration.Translator
 
         // Get the JSON schema and track changes
         var jsonSchema = context.AdditionalTextsProvider
-            .Where(static file => file.Path.EndsWith("en_US\\resources.json"))
+            .Where(static file => file.Path.Replace("\\", "/").EndsWith("en_US/resources.json", StringComparison.OrdinalIgnoreCase))
             .Select((text, _) => (text, text.GetText()))
             .Collect()
             .WithTrackingName("JsonSchema");

Wino.SourceGenerators/Wino.SourceGenerators.csproj

@@ -3,6 +3,7 @@
 	<PropertyGroup>
 		<TargetFramework>netstandard2.0</TargetFramework>
 		<Nullable>enable</Nullable>
+		<LangVersion>latest</LangVersion>
 		<IncludeBuildOutput>false</IncludeBuildOutput>
 		<PlatformTarget>AnyCPU</PlatformTarget>
 		<EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>