✨ Adds VSCode configuration files for extensions and settings

Introduces new extensions.json and settings.json files to recommend
useful VSCode extensions and configure JSON schemas, word wrap, and
default formatters for XML files. This enhances the development
environment for better productivity and consistency.

.vscode/settings.json

@@ -0,0 +1,20 @@
+{
+  "json.schemas": [
+    {
+      "fileMatch": [
+        "xunit.runner.json"
+      ],
+      "url": "https://xunit.net/schema/current/xunit.runner.schema.json"
+    },
+    {
+      "fileMatch": [
+        "stylecop.json"
+      ],
+      "url": "https://raw.githubusercontent.com/bjornhellander/NewStyleCopAnalyzers/refs/heads/master/StyleCop.Analyzers/StyleCop.Analyzers/Settings/stylecop.schema.json"
+    }
+  ],
+  "editor.wordWrap": "on",
+  "[xml]": {
+    "editor.defaultFormatter": "redhat.vscode-xml"
+  }
+}