Added Sunrise nightlight mode and more UI features

-   Added Sunrise nightlight mode
-   Added Chunchun effect
-   Added `LO` (live override) command to HTTP API
-   Added `mode` to `nl` object of JSON state API, deprecating `fade`
-   Added light color scheme support to web UI (click sun next to brightness slider)
-   Added option to hide labels in web UI (click flame icon next to intensity slider)
-   Added hex color input (click palette icon next to palette select) (resolves #506)
-   Added support for RGB sliders (need to set in localstorage)
-   Added support for custom background color or image (need to set in localstorage)
-   Added option to hide bottom tab bar in PC mode (need to set in localstorage)
-   Fixed transition lag with multiple segments (fixes #985)
-   Changed Nightlight wording (resolves #940)

readme.md

@@ -7,7 +7,7 @@
   <a href="https://github.com/Aircoookie/WLED-App"><img src="https://img.shields.io/badge/app-wled-blue.svg?style=flat-square"></a>
   </p>
   
-# 👋 Welcome to my project WLED!
+# Welcome to my project WLED! ✨
 
 A fast and feature-rich implementation of an ESP8266/ESP32 webserver to control NeoPixel (WS2812B, WS2811, SK6812, APA102) LEDs or also SPI based chipsets like the WS2801!