Power off playlist unload.

wled00/fcn_declare.h

@@ -166,6 +166,7 @@ class PinManagerClass {
 };
 
 //playlist.cpp
+void unloadPlaylist();
 void loadPlaylist(JsonObject playlistObject);
 void handlePlaylist();
 

wled00/led.cpp

@@ -30,6 +30,7 @@ void toggleOnOff()
   {
     briLast = bri;
     bri = 0;
+    unloadPlaylist();
   }
 }
 

wled00/playlist.cpp

@@ -74,9 +74,19 @@ void serializePlaylist() {
 }
 */
 
+void unloadPlaylist() {
+  if (playlistEntries != nullptr) {
+    delete[] playlistEntries;
+    playlistEntries = nullptr;
+  }
+  currentPlaylist = playlistIndex = -1;
+  playlistLen = playlistEntryDur = 0;
+}
+
 void loadPlaylist(JsonObject playlistObj) {
-  if (playlistEntries != nullptr) {delete[] playlistEntries; playlistEntries = nullptr;}
-  currentPlaylist = playlistIndex = -1; playlistEntryDur = 0;
+
+  unloadPlaylist();
+  
   JsonArray presets = playlistObj["ps"];
   playlistLen = presets.size();
   if (playlistLen == 0) return;