enable sourcemaps for taler-wallet-cli

packages/taler-wallet-cli/rollup.config.js

@@ -4,12 +4,14 @@ import nodeResolve from "@rollup/plugin-node-resolve";
 import json from "@rollup/plugin-json";
 import builtins from "builtin-modules";
 import pkg from "./package.json";
+import sourcemaps from 'rollup-plugin-sourcemaps';
 
 export default {
   input: "lib/index.js",
   output: {
     file: pkg.main,
     format: "cjs",
+    sourcemap: true,
   },
   external: builtins,
   plugins: [
@@ -17,12 +19,14 @@ export default {
       preferBuiltins: true,
     }),
 
-    json(),
+    sourcemaps(),
 
     commonjs({
-      sourceMap: false,
+      sourceMap: true,
       transformMixedEsModules: true,
     }),
+
+    json(),
   ],
 }