feat: add new components and update UI and type declarations

- add AiTabSwitch component with its image assets and styles
- add Welcome component for welcome text, weather display and notice messages
- update ChatMainList to use new components and add background header layout
- replace custom swiper in NoticeMessage with Vant VanSwipe component
- add Vant Swipe type definitions to components.d.ts

src/pages/home/components/ChatMainList/index.vue

@@ -4,6 +4,18 @@
     <div class="absolute top-0 left-0 w-full z-10">
       <ChatTopNavBar ref="topNavBarRef" :mainPageDataModel="mainPageDataModel" @showDrawer="handleShowDrawer" />
     </div>
+
+    <div class="relative">
+      <img class="w-full block" :src="mainPageDataModel?.initPageImages?.backgroundImageUrl" style="height: 252px;" />
+      <div class="absolute bottom-0 left-0 right-0 flex-1">
+        <div class="px-12 pt-12">
+          <Welcome :mainPageDataModel="mainPageDataModel" />
+        </div>
+        <div style="margin-bottom: -1px;">
+          <AiTabSwitch v-model="tabIndex" :list="tabList" @change="handleChange" />
+        </div>
+      </div>
+    </div>
   </div>
 </template>
 
@@ -11,8 +23,8 @@
 import { onMounted, nextTick, onUnmounted, ref } from "vue";
 import { MessageRole, MessageType, CompName, Command } from "@/constants/ChatModel";
 
-import HomeWelcome from "../HomeWelcome/index.vue";
-import AiTabSwitch from "@/components/AiTabSwitch/index.vue";
+import Welcome from "../Welcome/index.vue";
+import AiTabSwitch from "../AiTabSwitch/index.vue";
 import Discovery from "../Discovery/index.vue";
 import ChatGuide from "../ChatGuide/index.vue";