fix(vita3k): export XDG_DATA_DIRS to ensure bundled share files are discoverable

Author: XargonWan

vita3k/component_launcher.sh

@@ -7,6 +7,9 @@ component_path="$(cd "$(dirname "${BASH_SOURCE[0]}" )" && pwd)"
 export LD_LIBRARY_PATH="$component_path/lib:${LD_LIBRARY_PATH}"
 PATH="$component_path/bin:$PATH"
 
+# Ensure bundled share files are discoverable inside the Flatpak runtime
+export XDG_DATA_DIRS="$component_path/share:${XDG_DATA_DIRS}"
+
 log i "RetroDECK is now launching $component_name"
 log d "Library path is: $LD_LIBRARY_PATH"