feat: new error banner, qol

rust/src/cmd.rs

@@ -63,7 +63,7 @@ pub async fn startline(app: AppHandle, refresh: bool) -> Result<(), String> {
     if let Some(p) = &mut appd.profile {
         log::debug!("{}", hash);
         p.line_up(hash, refresh, app.clone()).await
-            .map_err(|e| format!("Lineup failed:\n{}", e))?;
+            .map_err(|e| e.to_string())?;
         let app_clone = app.clone();
         let p_clone = p.clone();
         tauri::async_runtime::spawn(async move {

rust/src/modules/display_windows.rs

@@ -88,7 +88,9 @@ impl Display {
             settings.borrow_mut().resolution = Resolution::new(width, height);
         }
 
-        display_set.apply()?;
+        display_set.apply().map_err(
+            |_| anyhow!("The selected monitor has been disconnected or doesn't support the chosen display mode")
+        )?;
         displayz::refresh()?;
 
         log::debug!("prepare display: done");