fixed bug that caused duedate to not setting after selecting

lib/pages/task_edit_page.dart

@@ -17,6 +17,7 @@ class TaskEditPage extends StatefulWidget {
 
 class _TaskEditPageState extends State<TaskEditPage> {
   Task? task;
+  bool isInitialized = true;
   final titleController = TextEditingController();
   final descriptionController = TextEditingController();
   final categoryController = TextEditingController();
@@ -29,7 +30,7 @@ class _TaskEditPageState extends State<TaskEditPage> {
   void didChangeDependencies() {
     super.didChangeDependencies();
     task = ModalRoute.of(context)!.settings.arguments as Task?;
-    if (task != null) {
+    if (task != null && !isInitialized) {
       titleController.text = task!.title;
       descriptionController.text = task!.description;
       categoryController.text = task!.category;
@@ -40,6 +41,7 @@ class _TaskEditPageState extends State<TaskEditPage> {
       dueTimeController.text = task!.due != null
           ? TimeOfDay.fromDateTime(task!.due!).format(context)
           : '';
+      isInitialized = true;
     }
     pageTitle = task?.title ?? 'CreateTask';
   }
@@ -62,6 +64,10 @@ class _TaskEditPageState extends State<TaskEditPage> {
       ),
       body: Form(
         autovalidateMode: AutovalidateMode.onUnfocus,
+        child: Padding(
+          padding: EdgeInsets.symmetric(
+            horizontal: MediaQuery.of(context).size.width * 0.05,
+          ),
           child: Column(
             children: [
               TextFormField(
@@ -139,6 +145,7 @@ class _TaskEditPageState extends State<TaskEditPage> {
             ],
           ),
         ),
+      ),
       floatingActionButton: FloatingActionButton(
         onPressed: onSavePressed,
         child: Icon(Icons.save),