New custom palettes editor (#5010)

* full refactoring, added live preview, better minifying in cdata.js
* update main UI buttons, support for gaps in cpal files, cpal UI cleanup
* fixed some layout issues, added un-ordered cpal deletion
* changed to tab indentation, paste button border color now holds stored color
* fix preview to work properly and some other fixes in UI
* always unfreeze
* new approach to loading iro.js, add harmonic random palette, many fixes.
* decoupling iro.j, update UI of cpal.htm
- load iro.js sequentially
- no parallel requests in cpal.htm
- update UI buttons
- fix showing sequential loading of palettes (using opacity)
- better UX for mobile (larger markers, larger editor)
- various fixes
* small change to buttons
* load iro.js dynamically, remove iro.js from index.htm, revert changes to cdata.js
* improved visibility for very dark/black palettes and markers

wled00/json.cpp

@@ -535,17 +535,15 @@ bool deserializeState(JsonObject root, byte callMode, byte presetId)
     else callMode = CALL_MODE_DIRECT_CHANGE;  // possible bugfix for playlist only containing HTTP API preset FX=~
   }
 
-  if (root.containsKey(F("rmcpal")) && root[F("rmcpal")].as<bool>()) {
-    if (customPalettes.size()) {
-      char fileName[32];
-      sprintf_P(fileName, PSTR("/palette%d.json"), customPalettes.size()-1);
-      if (WLED_FS.exists(fileName)) WLED_FS.remove(fileName);
-      loadCustomPalettes();
-    }
+  if (root.containsKey(F("rmcpal"))) {
+    char fileName[32];
+    sprintf_P(fileName, PSTR("/palette%d.json"), root[F("rmcpal")].as<uint8_t>());
+    if (WLED_FS.exists(fileName)) WLED_FS.remove(fileName);
+    loadCustomPalettes();
   }
 
   doAdvancePlaylist = root[F("np")] | doAdvancePlaylist; //advances to next preset in playlist when true
-  
+
   JsonObject wifi = root[F("wifi")];
   if (!wifi.isNull()) {
     bool apMode = getBoolVal(wifi[F("ap")], apActive);