feat(category): 添加删除按钮(未添加逻辑）

src/budget/_category.py

@@ -29,6 +29,10 @@ class CategoryTab(TabPage):
         categoryWidget = QWidget()
         self.setLayout(categoryLayout)
 
+
+    def onCategoryDeleteClicked(self):
+        pass
+
     def onCategoryModifyClicked(self):
         # 创建添加数据对话框
         addDialog = QDialog(self)
@@ -68,12 +72,15 @@ class CategoryTab(TabPage):
         line3.setText(data[0][2])
         
         button1 = QPushButton("Confirm")
+        button3 = QPushButton("Delete")
         button2 = QPushButton("Abort")
         buttonLayout = QHBoxLayout()
         buttonLayout.addWidget(button1)
+        buttonLayout.addWidget(button3)
         buttonLayout.addWidget(button2)
 
         button1.clicked.connect(addDialog.accept)
+        button3.clicked.connect(self.onCategoryDeleteClicked)
         button2.clicked.connect(addDialog.reject)
 
         layout = QFormLayout()