Draft: Resolve "Add compatibility with Steam Deck"

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Changes :

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Related to :

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Related to #2353

Tasks:

• handle screen rotation automatically
  • mpv
  • fbv2
  • xorg
  • rotate touchscreen
• automatic video output switch will be implemented in a separate, more general MR
• no sound (jupiter)
  • automatic headphone switch
• no sound (galileo)
• controls are erratic
  • controls are working in ES (do not remap)
  • erratic controls after wake-up (both joypad & keyboard responds)
• integrate newer drm panel orientation quirks
• wifi (jupiter)
• wifi (galileo), cf https://lore.kernel.org/ath11k/CAFKu21b_4fbP3Oku_CLBOYi7wfwmYWUXoG5H1gknvFit-wc4Rw@mail.gmail.com/T/#maab4ac4e66f44b290b37131408abfbdcc1188ae2
• suspend mode (jupiter)
• suspend mode (galileo)
• volumed improvements
  • handle volume level of all input devices
  • handle brightness of backlight devices (when a special hotkey is pressed)
  • set volumed command to listen for specific steamddeck hotkey
  • replaces alsa-plugins
  • reload device list when a device is added or removed
  • handle brightness on KEY_BIGHTNESSUP/DOWN
• set pulseaudio to 48kHz
• bluetooth (jupiter)
• bluetooth (galileo)
• ES integratiopn
  • configuration sync between ES & volumed
    • volumed
    • ES
  • joystick controller reconfiguration freezes
• Emulators/Cores customization
  • Enable HD mode by default
  • Enable Widescreen mode by default
  • DS: configure desmume and melonds to set mouse as touchscreen
  • Xbox: right stick & triggers malfunction
  • dolphin input not working (using hidapi)
• overlays overlap screen
• cpu governors per emulated system

Other things to do:

• rotate odroidgo2 install and logo pictures
• input lost in dolphin