'Save Controller Profile' falsely reports successful save when no modifications have been made

RetroArch's default configuration file (retroarch.cfg) specifies "/app/share/libretro/autoconfig" as the joypad autoconfig directory. However, in the Flatpak environment, this path actually corresponds to "/var/lib/flatpak/app/org.libretro.RetroArch/current/active/files/share/libretro/autoconfig" in the root directory. This discrepancy prevents RetroArch from properly extracting files to the intended location.

To demonstrate this issue:

• Exit RetroArch completely
• Remove the RetroArch profile directory: ~/.var/app/org.libretro.RetroArch
• Launch RetroArch
• Navigate to Settings -> Input -> RetroPad Binds -> Port 1 Controls
• Select Save Controller Profile. You should see a confirmation message:

• Modify any button setting
• Attempt to Save Controller Profile again. This time, you'll encounter the error "Error saving controller profile." described on the screenshot below:

Expected behavior

• Exit RetroArch completely
• Remove the RetroArch profile directory: ~/.var/app/org.libretro.RetroArch
• Launch RetroArch
• Navigate to Settings -> Input -> RetroPad Binds -> Port 1 Controls
• Select Save Controller Profile. The error "Error saving controller profile." should be displayed:

Version

• Flatpak 1.19.1

Reproduce the behavior in the Flatpak environment from Settings -> Input -> RetroPad Binds -> Port 1 Controls. Compare saving an unchanged profile with saving after modifying a button, using the reported paths and messages as the checks. Done means the initial save reports an error when no profile can be written, rather than falsely reporting success.