don't clear status on None

src/ui.rs

@@ -89,7 +89,9 @@ impl UI {
 
     pub fn update(&mut self) {
         let action = self.process_page_input();
-        self.status.clear();
+        if !action.is_none() {
+            self.status.clear();
+        }
         if let Err(e) = self.process_action(action) {
             self.set_status(format!(
                 "{}{}{}",

src/ui/action.rs

@@ -13,6 +13,17 @@ pub enum Action {
     Error(String),                                     // error message
 }
 
+impl Action {
+    /// Is it Action::None?
+    pub fn is_none(&self) -> bool {
+        if let Action::None = self {
+            true
+        } else {
+            false
+        }
+    }
+}
+
 impl fmt::Debug for Action {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {