dev: improve error message in UIDesktop

This error message in UIDesktop caused me confusion earlier because it
didn't provide any indication of where the error came from. This commit
adds a string behind the error to specify that it happened while trying
to launch an app.

src/gui/src/UI/UIDesktop.js

@@ -1255,7 +1255,7 @@ async function UIDesktop(options) {
                 $('.show-desktop-btn').removeClass('hidden');
             }
         } catch (e) {
-            console.error(e);
+            console.error('UIDesktop app path launch error', e);
         }
 
         // get query params, any param that doesn't start with 'puter.' will be passed to the app
@@ -2355,4 +2355,4 @@ window.reset_window_size_and_position = (el_window) => {
     });
 }
 
-export default UIDesktop;
+export default UIDesktop;