misc/ upgrade to Angular 11

tsconfig.json

@@ -1,17 +1,32 @@
-/*
-  This is a "Solution Style" tsconfig.json file, and is used by editors and TypeScript’s language server to improve development experience.
-  It is not intended to be used to perform a compilation.
-
-  To learn more about this file see: https://angular.io/config/solution-tsconfig.
-*/
 {
-  "files": [],
-  "references": [
-    {
-      "path": "./src/tsconfig.app.json"
-    },
-    {
-      "path": "./src/tsconfig.spec.json"
-    }
+  "compileOnSave": false,
+  "compilerOptions": {
+    "module": "es2020",
+    "outDir": "./dist/out-tsc",
+    "sourceMap": true,
+    "declaration": false,
+    "moduleResolution": "node",
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "target": "es5",
+    "typeRoots": [
+      "node_modules/@types"
+    ],
+    "lib": [
+      "es2017",
+      "es2016",
+      "es2015",
+      "dom"
+    ]
+  },
+  "files": [
+    "src/main.ts",
+    "src/polyfills.ts"
+  ],
+  "include": [
+    "src/**/*.d.ts"
+  ],
+  "exclude": [
+    "node_modules"
   ]
-}
+}