upgrade to typescript 5 (#70)

web/config-overrides.js

@@ -1,24 +1,19 @@
 const webpack = require("webpack");
 
-// This file is used by react-app-rewired.
-// Needed to browserify crypto for some cosmos key stuff I believe.
-// FIXME - is this still needed?
+// For react-app-rewired to override the default webpack configuration
 module.exports = function override(config) {
   const fallback = config.resolve.fallback || {};
   Object.assign(fallback, {
-    os: require.resolve("os-browserify/browser"),
-    buffer: require.resolve("buffer/"),
-    http: require.resolve("stream-http"),
-    https: require.resolve("https-browserify"),
-    crypto: require.resolve("crypto-browserify"),
+    buffer: false,
+    crypto: false,
+    events: false,
+    path: false,
     stream: require.resolve("stream-browserify"),
-    process: require.resolve("process/browser"),
-    vm: require.resolve("vm-browserify"),
+    string_decoder: false,
   });
   config.resolve.fallback = fallback;
   config.plugins = (config.plugins || []).concat([
     new webpack.ProvidePlugin({
-      process: "process/browser",
       Buffer: ["buffer", "Buffer"],
     }),
   ]);