Revert "feat: split button editor into app subpages"

This reverts commit 5a4e3f6423.

code/th_02_core.js

@@ -80,10 +80,6 @@ function FloatBallAppWM(logger) {
     // 按钮管理首页：搜索过滤状态
     buttonManagerQuery: "",
 
-    // 按钮编辑 App 化：编辑首页 / 基础信息子页 / 完整编辑页
-    buttonEditorSubPage: null,
-    buttonEditorDraft: null,
-
     closing: false
   };