refactor(ui): removed all n-space

src/tools/chronometer/chronometer.vue

@@ -3,12 +3,12 @@
     <c-card>
       <div class="duration">{{ formatMs(counter) }}</div>
     </c-card>
-    <n-space justify="center" mt-5>
+    <div mt-5 flex justify-center gap-3>
       <c-button v-if="!isRunning" type="primary" @click="resume">Start</c-button>
       <c-button v-else type="warning" @click="pause">Stop</c-button>
 
       <c-button @click="counter = 0">Reset</c-button>
-    </n-space>
+    </div>
   </div>
 </template>