feat(头部组件): 新增自定义帮助按钮

src/components/GeneralHeader.vue

@@ -44,12 +44,7 @@
       <!-- 右侧按钮 -->
       <!-- 帮助按钮 -->
       <button v-if="showHelp" class="help-btn" style="width: 1.5em" @click="$emit('help')">
-        <img
-          v-smart-img
-          src="../assets/icon/helpWhite.png"
-          alt=""
-          style="width: 100%; display: block"
-        />
+        <img v-smart-img :src="helpImg" alt="" style="width: 100%; display: block" />
       </button>
 
       <!-- 语言切换 -->
@@ -136,6 +131,14 @@ const props = defineProps({
     },
   },
 
+  // 帮助图标
+  helpImg: {
+    type: String,
+    default: () => {
+      return new URL('../assets/icon/helpWhite.png', import.meta.url).href
+    },
+  },
+
   // 携带参数返回
   backQuery: {
     type: Object,