fix: 负值错误

src/budget/_hook.py

@@ -1,2 +0,0 @@
-from PyQt6.QtWidgets import *
-from PyQt6.QtCore import *

src/budget/_trans.py

@@ -139,8 +139,14 @@ class TransTab(TabPage):
         amountLabel = QLabel("Amount:")
         amountLine = QLineEdit()
         num = self.transData[self.rows[0].row()][5]
-        # 去掉￥符号
-        num = num[1:]
+        # 去掉￥符号,考虑负值
+        if num[0] == '-':
+            num = num[2:]
+            num = '-' + num
+        else:
+            num = num[1:]
+
+
         amountLine.setText(num)
         # 只允许输入两位小数
         amountLine.setValidator(QDoubleValidator(0.00, 999999999.99, 2))