feat: Refactor NoteEditorScreen layout for improved text field handling and UI consistency

lib/screens/note_editor_screen.dart

@@ -258,7 +258,6 @@ class _NoteEditorScreenState extends State<NoteEditorScreen> {
                   ),
                 ),
                 Expanded(
-                  child: SingleChildScrollView(
                   child: Padding(
                     padding: const EdgeInsets.all(20),
                     child: Column(
@@ -279,9 +278,12 @@ class _NoteEditorScreenState extends State<NoteEditorScreen> {
                           ),
                         ),
                         const SizedBox(height: 16),
-                          TextField(
+                        Expanded(
+                          child: TextField(
                             controller: _bodyController,
+                            keyboardType: TextInputType.multiline,
                             maxLines: null,
+                            expands: true,
                             style: const TextStyle(
                               color: Colors.white,
                               fontSize: 16,
@@ -294,8 +296,8 @@ class _NoteEditorScreenState extends State<NoteEditorScreen> {
                               contentPadding: EdgeInsets.zero,
                             ),
                           ),
-                        ],
                         ),
+                      ],
                     ),
                   ),
                 ),