Change keybinding: SPC o s → SPC o p for opening Python session

The SPC o s binding was conflicting with the macOS "send to application"
submenu in Doom Emacs. Changed to SPC o p (p for "python session") to
avoid the conflict while maintaining a mnemonic keybinding.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: ElleNajt

ob-python-extras-keybindings.el

@@ -43,7 +43,7 @@
       (kbd "SPC f i") #'org-toggle-inline-images
       (kbd "SPC f I") #'org-display-inline-images
       (kbd "C-c C-c") #'org-dispatch-C-c-C-c
-      (kbd "SPC o s") #'ob-python-extras/open-session-buffer
+      (kbd "SPC o p") #'ob-python-extras/open-session-buffer
       (kbd "SPC o v") #'ob-python-extras/get-variables 
       (kbd "g s") #'org-edit-special)