preferences added

src/model.rs

@@ -108,3 +108,38 @@ pub struct ItemChanges {
     pub numeric_value: Option<Option<f64>>,
     pub recurrence: Option<String>,
 }
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct DocumentSettings {
+    pub description: String,
+    pub backup_on_open: bool,
+    pub trash_policy: String,
+    pub done_policy: String,
+    pub automatic_filing: bool,
+    pub date_order: String,
+    pub week_start: String,
+    pub default_time: String,
+    pub morning_time: String,
+    pub afternoon_time: String,
+    pub evening_time: String,
+    pub note_tab_width: u8,
+}
+
+impl Default for DocumentSettings {
+    fn default() -> Self {
+        Self {
+            description: String::new(),
+            backup_on_open: false,
+            trash_policy: "on-demand".into(),
+            done_policy: "keep".into(),
+            automatic_filing: true,
+            date_order: "ymd".into(),
+            week_start: "monday".into(),
+            default_time: "09:00".into(),
+            morning_time: "09:00".into(),
+            afternoon_time: "13:00".into(),
+            evening_time: "18:00".into(),
+            note_tab_width: 4,
+        }
+    }
+}