Added horizontal line between runs

src/main.py

@@ -145,7 +145,11 @@ class CartridgesApplication(Adw.Application):
     def on_about_action(self, *_args):
         # Get the debug info from the log files
         debug_str = ""
-        for path in shared.log_files:
+        for i, path in enumerate(shared.log_files):
+            # Add a horizontal line between runs
+            if i > 0:
+                debug_str += "─" * 37 + "\n"
+            # Add the run's logs
             log_file = (
                 lzma.open(path, "rt", encoding="utf-8")
                 if path.name.endswith(".xz")