fix(custom): type 'a' in command input and enlarge input box

src/events.rs

@@ -141,6 +141,8 @@ fn handle_custom_event(app: &mut App, key: event::KeyEvent) -> bool {
         KeyCode::Char('a') => {
             if state.focus == CustomFocus::Lines {
                 state.toggle_all();
+            } else {
+                state.command.push('a');
             }
         }
         KeyCode::Backspace => {

src/ui.rs

@@ -49,7 +49,7 @@ fn draw_custom(f: &mut Frame, app: &App) {
         .margin(1)
         .constraints([
             Constraint::Min(5),
-            Constraint::Length(3),
+            Constraint::Length(5),
             Constraint::Length(1),
         ])
         .split(f.area());