feat(reader): add settings system with per-book delta and defaults

client/vite.config.ts

@@ -7,14 +7,10 @@ import tailwindcss from '@tailwindcss/vite'
 
 // https://vite.dev/config/
 export default defineConfig({
-  plugins: [
-    vue(),
-    vueDevTools(),
-    tailwindcss(),
-  ],
+  plugins: [vue(), vueDevTools(), tailwindcss()],
   resolve: {
     alias: {
-      '@': fileURLToPath(new URL('./src', import.meta.url))
+      '@': fileURLToPath(new URL('./src', import.meta.url)),
     },
   },
   server: {