keyboard: use fallback layout if failing to load

src/backend/common.rs

@@ -68,10 +68,14 @@ where
 
         app.screens.clear();
         let data = if let Some(wl) = wl.as_mut() {
-            keymap = get_keymap_wl().ok();
+            keymap = get_keymap_wl()
+                .map_err(|f| log::warn!("Could not load keyboard layout: {}", f))
+                .ok();
             crate::overlays::screen::create_screens_wayland(wl, app)?
         } else {
-            keymap = get_keymap_x11().ok();
+            keymap = get_keymap_x11()
+                .map_err(|f| log::warn!("Could not load keyboard layout: {}", f))
+                .ok();
             match crate::overlays::screen::create_screens_x11pw(app) {
                 Ok(data) => data,
                 Err(e) => {