appdata.xml only installed for simple install on linux with install.sh

[ljden]

appdata.xml appears to only be installed for simple_install_f(), it doesn't seem to be installed in xdg_install_f()

Arduino/build/linux/dist/install.sh

Lines 101 to 102 in 43b0818

	mkdir -p "${HOME}/.local/share/metainfo"
	cp "${SCRIPT_PATH}/lib/appdata.xml" "${HOME}/.local/share/metainfo/${RESOURCE_NAME}.appdata.xml"