qutebrowser: Change qute-gemini to open tab related

Using the userscript qute-gemini to open any tabs
(if invoked as qute-gemini-tab) to be related to
the current tab.

qutebrowser/.local/share/qutebrowser/userscripts/qute-gemini

@@ -385,7 +385,7 @@ def open_url(url: str, open_args: str) -> None:
 if __name__ == "__main__":
     # Open in the current or a new tab depending on the script name
     if sys.argv[0].endswith("-tab"):
-        open_args = "-t"
+        open_args = "-b -r"
     else:
         open_args = ""