Add RetroPie configs backup from /opt/retropie/configs

키 설정·패드 매핑·에뮬 설정을 sync-configs.sh로 동기화.

Co-authored-by: Cursor <cursoragent@cursor.com>

configs/zxspectrum/.zesaruxrc

@@ -0,0 +1,20 @@
+;ZEsarUX sample configuration file
+;
+;Lines beginning with ; or # are ignored
+
+;Run zesarux with --help or --experthelp to see all the options
+--disableborder
+--disablefooter
+--vo sdl
+--ao sdl
+--hidemousepointer
+--fullscreen
+
+--smartloadpath /home/hoon/RetroPie/roms/zxspectrum
+
+--joystickemulated Kempston
+
+;Remap Fire Event. Uncomment and amend if you wish to change the default button 3.
+;--joystickevent 3 Fire
+;Remap On-screen keyboard. Uncomment and amend if you wish to change the default button 5.
+;--joystickevent 5 Osdkeyboard