[Peek]Add support for previewing .ahk files as plaintext (#35538)

src/Monaco/monacoSpecialLanguages.js

@@ -7,7 +7,7 @@ export async function registerAdditionalLanguages(monaco){
     await languageDefinitions();
     registerAdditionalLanguage("cppExt", [".ino", ".pde"], "cpp", monaco)
     registerAdditionalLanguage("xmlExt", [".wsdl", ".csproj", ".vcxproj", ".vbproj", ".fsproj"], "xml", monaco)
-    registerAdditionalLanguage("txtExt", [".sln", ".log", ".vsconfig", ".env", ".srt"], "txt", monaco)
+    registerAdditionalLanguage("txtExt", [".sln", ".log", ".vsconfig", ".env", ".srt", ".ahk"], "txt", monaco)
     registerAdditionalLanguage("razorExt", [".razor"], "razor", monaco)
     registerAdditionalLanguage("vbExt", [".vbs"], "vb", monaco)
     registerAdditionalLanguage("iniExt", [".inf", ".gitconfig", ".gitattributes", ".editorconfig"], "ini", monaco)

src/modules/peek/Peek.FilePreviewer/Previewers/WebBrowserPreviewer/Helpers/MonacoHelper.cs

@@ -20,10 +20,11 @@ namespace Peek.FilePreviewer.Previewers
 
         public static HashSet<string> GetExtensions()
         {
-            HashSet<string> set = new HashSet<string>();
+            HashSet<string> set = [];
+
             try
             {
-                JsonDocument languageListDocument = Microsoft.PowerToys.FilePreviewCommon.MonacoHelper.GetLanguages();
+                using JsonDocument languageListDocument = Microsoft.PowerToys.FilePreviewCommon.MonacoHelper.GetLanguages();
                 JsonElement languageList = languageListDocument.RootElement.GetProperty("list");
                 foreach (JsonElement e in languageList.EnumerateArray())
                 {