feat: expand color strip sources with new effects, gradient improvements, and daylight/candlelight enhancements

Effects: add 7 new procedural effects (rain, comet, bouncing ball, fireworks,
sparkle rain, lava lamp, wave interference) and custom palette support via
user-defined [[pos,R,G,B],...] stops.

Gradient: add easing functions (linear, ease_in_out, step, cubic) for stop
interpolation, plus noise_perturb and hue_rotate animation types.

Daylight: add longitude field and NOAA solar equations for accurate
sunrise/sunset based on latitude, longitude, and day of year.

Candlelight: add wind simulation (correlated gusts), candle type presets
(taper/votive/bonfire), and wax drip effect with localized brightness dips.

Also fixes editor preview to include all new fields for inline LED test.

server/src/wled_controller/static/js/app.ts

@@ -118,7 +118,7 @@ import {
 // Layer 5: color-strip sources
 import {
     showCSSEditor, closeCSSEditorModal, forceCSSEditorClose, saveCSSEditor, deleteColorStrip,
-    onCSSTypeChange, onEffectTypeChange, onAnimationTypeChange, onCSSClockChange, onDaylightRealTimeChange,
+    onCSSTypeChange, onEffectTypeChange, onEffectPaletteChange, onAnimationTypeChange, onCSSClockChange, onDaylightRealTimeChange,
     colorCycleAddColor, colorCycleRemoveColor,
     compositeAddLayer, compositeRemoveLayer,
     mappedAddZone, mappedRemoveZone,
@@ -430,6 +430,7 @@ Object.assign(window, {
     deleteColorStrip,
     onCSSTypeChange,
     onEffectTypeChange,
+    onEffectPaletteChange,
     onCSSClockChange,
     onAnimationTypeChange,
     onDaylightRealTimeChange,