disable sourcemap (#1936)

The sourcemap is almost 20mb (and we still don't get proper stacktraces
for errors in the main/node.js thread)

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vite.main.config.mts

@@ -11,9 +11,6 @@ export default defineConfig({
   build: {
     rollupOptions: {
       external: ["better-sqlite3"],
-      output: {
-        sourcemap: true,
-      },
     },
   },
   plugins: [