feat: 添加 unselectable 类，更新样式导入，优化返回按钮图标插槽，修改应用名称为 Riwsan

src/theme/common.css

@@ -0,0 +1,5 @@
+.unselectable {
+   user-select: none;
+   --moz-user-select: none;
+   -webkit-user-select: none;
+}

src/theme/index.css

@@ -1,2 +1,3 @@
 @import "tailwindcss";
 @config "../../tailwind.config.ts";
+@import "./common.css";

src/ui/back-button/index.vue

@@ -18,7 +18,9 @@ function onBack() {
 
 <template>
   <button class="z-1 flex items-center" @click="onBack">
-    <ion-icon :icon="chevronBackOutline" class="text-2xl" />
+    <slot name="icon">
+      <ion-icon :icon="chevronBackOutline" class="text-2xl" />
+    </slot>
     <span v-if="text" class="text-base">{{ text }}</span>
   </button>
 </template>

src/views/global-menu/index.vue

@@ -1,4 +1,5 @@
 <script lang='ts' setup>
+import { closeOutline } from "ionicons/icons";
 import UserInfo from "../user/components/user-info.vue";
 import IssuingAsset from "./components/issuing-asset.vue";
 import MyRevenue from "./components/my-revenue.vue";
@@ -9,7 +10,11 @@ import TradeSettings from "./components/trade-settings.vue";
   <ion-page>
     <ion-header class="ion-no-border">
       <ion-toolbar class="ion-toolbar">
-        <ui-back-button slot="start" text="" />
+        <ui-back-button slot="end" text="">
+          <template #icon>
+            <ion-icon :icon="closeOutline" class="text-2xl mr-3" />
+          </template>
+        </ui-back-button>
       </ion-toolbar>
     </ion-header>
     <ion-content :fullscreen="true" class="ion-padding">