Update xpower-flow-card.js

## v1.3.47

- New `mppt_scale` option (0.8–1.6, default 1) to enlarge the PV1/PV2/PV3 side info (dual/triple MPPT); also available as the `--xpf-mppt-scale` CSS variable
- New animated weather icons (`weather_entity`): rain, pouring, thunder, thunder with rain, snow, sleet, hail, fog, wind, wind with clouds, exceptional; twinkling stars on clear nights. Animations respect reduced motion

Author: BTNBx