feat: add Vue.js syntax highlighting (#1785)

Author: gadfly3173

THIRD-PARTY-LICENSES.md

@@ -98,3 +98,10 @@ The project uses the following third-party libraries or assets
 - **Commit**: 0e89ecdb13650dbbe5a1e85b47b2e1530bf2f355
 - **License**: MIT License
 - **License Link**: https://github.com/samuel-weinhardt/vscode-jsp-lang/blob/0e89ecdb13650dbbe5a1e85b47b2e1530bf2f355/LICENSE
+
+### vuejs-language-tools
+
+- **Source**: https://github.com/vuejs/language-tools
+- **Commit**: 68d98dc57f8486c2946ae28dc86bf8e91d45da4d
+- **License**: MIT License
+- **License Link**: https://github.com/vuejs/language-tools/blob/68d98dc57f8486c2946ae28dc86bf8e91d45da4d/LICENSE

src/Models/TextMateHelper.cs

@@ -26,6 +26,7 @@ public static class GrammarUtility
             new ExtraGrammar("source.hx", [".hx"], "haxe.json"),
             new ExtraGrammar("source.hxml", [".hxml"], "hxml.json"),
             new ExtraGrammar("text.html.jsp", [".jsp", ".jspf", ".tag"], "jsp.json"),
+            new ExtraGrammar("source.vue", [".vue"], "vue.json"),
         ];
 
         public static string GetScope(string file, RegistryOptions reg)