fix(miniprogram): left-align headers, raise workbench bar, drop dashboard username

Co-authored-by: Cursor <cursoragent@cursor.com>

miniprogram/components/bx-ui/bx-wf-config-page.vue

@@ -5,8 +5,8 @@
         <view class="topbar-back" @click="onBack">
           <text class="topbar-back-icon">‹</text>
         </view>
+        <text class="topbar-title">{{ pageTitle }}</text>
       </view>
-      <text class="topbar-title">{{ pageTitle }}</text>
       <view class="topbar-right" />
     </view>