bugfix: do not reset segments if unchanged

[DedeHai]

lines were swapped, causing segment reset on every preset call.

fixes #4934

Summary by CodeRabbit

• New Features

  • Added parallel I2S output option and expanded ESP32 V4 support with higher LED/bus limits and DMX references.
  • Improved 2D segment geometry and added segment naming.
  • LED settings gain FPS (0–250) control with warnings and guidance.
  • UI enhancements: better palette controls visibility, pointer-based tooltips, accessibility titles, and consistent “Installed version: WLED …” display.

• Bug Fixes

  • Consistent primary color handling across MQTT, Hue, buttons, rotary, and nightlight.
  • Smoother effect/palette timing, more reliable preset application, and relay stabilization delay.
  • Correct BME280 unit label initialization.

• Documentation

  • Updated CHANGELOG entries.

• Chores

  • Bumped version to 0.15.2-beta1.