ref: revert target to es2016

.changeset/tender-singers-think.md

@@ -1,5 +0,0 @@
----
-"@sv443-network/userutils": minor
----
-
-Library now targets ES2018 instead of ES2016

tsconfig.json

@@ -2,7 +2,7 @@
   "compilerOptions": {
     "module": "NodeNext",
     "moduleResolution": "NodeNext",
-    "target": "ES2018",
+    "target": "ES2016",
     "outDir": "dist/out",
     "lib": ["ES2022", "DOM", "DOM.Iterable"],
     "baseUrl": ".",