🤖 config(typescript): Create tsconfig.json.

These changes were automatically generated by a transform whose code can be found at:
  - https://github.com/make-github-pseudonymous-again/rejuvenate/blob/8134808bd3e9bcbb3e4b2ca5401e2dee58965a01/src/transforms/typescript:configure.js
Please contact the author of the transform if you believe there was an error.

tsconfig.json

@@ -0,0 +1,17 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "compilerOptions": {
+    "allowJs": true,
+    "emitDeclarationOnly": true,
+    "declaration": true,
+    "outDir": "types",
+    "checkJs": true,
+    "target": "es2020",
+    "module": "es2020",
+    "moduleResolution": "node",
+    "allowSyntheticDefaultImports": true
+  },
+  "include": [
+    "src/**/*"
+  ]
+}