live: improve logging in image_create

Log the whole context of the error when an exception happens.
The previous exception handling was hidding important information
about the cause of the error.

src/live/ogOperations.py

@@ -483,9 +483,9 @@ class OgLiveOperations:
                 raise RuntimeError(f'Cannot access partclone image file {image_path}')
 
             image_info = ogGetImageInfo(image_path)
-        except:
+        except Exception as e:
             self._restartBrowser(self._url)
-            raise RuntimeError(f'Error: Cannot create image for {fstype} filesystem in device {padev}')
+            raise RuntimeError(f'Failed to create image for {fstype} filesystem in device {padev}: {e}') from e
 
         try:
             st = os.stat(image_path)