fix: set target to ES2020

Author: mkosir

package-lock.json

@@ -11,7 +11,7 @@
     "lib": ["ESNext", "DOM"],
     "module": "ESNext",
     "moduleResolution": "Bundler",
-    "target": "ES6",
+    "target": "ES2020",
     "allowSyntheticDefaultImports": true,
     "noUnusedLocals": true,
     "noUnusedParameters": true,