Fix TS compiler options. (#4078)

## Motivation

There's some cleanup work being done in
linera-io/linera-web#49 that's incompatible with
current configuration and yields `Uncaught ReferenceError: require is
not defined` error.

## Proposal

Update the compilation options to more modern ones that fix the error.

## Test Plan

CI

## Release Plan

- Nothing to do 

## Links

- [reviewer
checklist](https://github.com/linera-io/linera-protocol/blob/main/CONTRIBUTING.md#reviewer-checklist)

Author: deuszx

linera-web/signer/tsconfig.json

@@ -1,9 +1,9 @@
 {
   "compilerOptions": {
-    "target": "ES2020",
-    "module": "CommonJS",
-    "lib": ["ES2020"],
-    "moduleResolution": "node",
+    "target": "ES2023",
+    "lib": ["ES2020", "WebWorker", "DOM"],
+    "module": "ESNext",
+    "moduleResolution": "bundler",
     "esModuleInterop": true,
     "strict": true,
     "sourceMap": true,