perf: add TypeScript declarations

Author: vansergen

index.d.ts

@@ -0,0 +1,31 @@
+declare const _default: {
+  extends: "@commitlint/config-conventional";
+  rules: {
+    "body-max-line-length": [1, "always", 100];
+    "type-case": [2, "always", "camel-case"];
+    "type-enum": [
+      2,
+      "always",
+      [
+        "feat",
+        "fix",
+        "perf",
+        "revert",
+        "build",
+        "initial",
+        "dependencies",
+        "peerDependencies",
+        "devDependencies",
+        "metadata",
+        "docs",
+        "style",
+        "chore",
+        "refactor",
+        "test",
+        "ci"
+      ]
+    ];
+  };
+};
+
+export = _default;