Separate tsconfig for tests and prod

package.json

@@ -16,7 +16,7 @@
     "node": ">=10"
   },
   "scripts": {
-    "build": "tsc",
+    "build": "tsc --project tsconfig.production.json",
     "start": "ts-node src/tests.ts",
     "clean": "rm -rf lib",
     "prepare": "run-s clean build",

tsconfig.production.js

@@ -0,0 +1,17 @@
+{
+  "extends": "@tsconfig/node10/tsconfig.json",
+
+  "compilerOptions": {
+    "outDir": "./lib",
+    "allowJs": true,
+    "checkJs": true,
+    "declaration": true,
+    "declarationMap": true,
+    "noImplicitAny": false,
+    "resolveJsonModule": true,
+    "sourceMap": true,
+    "jsx": "react"
+  },
+  "include": ["./src/**/*"],
+  "exclude": ["./src/**/*.test.js", "node_modules", "**/node_modules"]
+}