Set build target to es2020

frontend/tsconfig.base.json

@@ -7,15 +7,15 @@
     "declaration": false,
     "downlevelIteration": true,
     "experimentalDecorators": true,
-    "module": "ES2022",
+    "module": "ES2020",
     "moduleResolution": "node",
     "importHelpers": true,
-    "target": "ES2022",
+    "target": "ES2020",
     "typeRoots": [
       "node_modules/@types"
     ],
     "lib": [
-      "ES2022",
+      "ES2020",
       "dom",
       "dom.iterable"
     ]

frontend/tsconfig.server.json

@@ -2,7 +2,7 @@
   "extends": "./tsconfig.app.json",
   "compilerOptions": {
     "outDir": "./out-tsc/server",
-    "target": "ES2022",
+    "target": "ES2020",
     "sourceMap": true,
     "types": [
       "node"