bugfix in pixelforge (no blur by default), fix glitch in animated gifs for C3

wled00/data/pixelforge/pixelforge.htm

@@ -1195,7 +1195,7 @@ async function imgPlay(url,name){
 			on:true,
 			seg: cur!==null && cur!==tgt
 				? [{id:cur,fx:0,n:""},{id:tgt,fx:53,frz:false,sx:128,n:name}]
-				: {id:tgt,fx:53,frz:false,sx:128,n:name}
+				: {id:tgt,fx:53,frz:false,sx:128,ix:0,n:name}
 		};
 		const r=await fetch(getURL('/json/state'),{method:'POST',body:JSON.stringify(j)});
 		const out=await r.json();

wled00/image_loader.cpp

@@ -28,6 +28,10 @@ int fileReadCallback(void) {
 }
 
 int fileReadBlockCallback(void * buffer, int numberOfBytes) {
+  #ifdef CONFIG_IDF_TARGET_ESP32C3
+  unsigned t0 = millis();
+  while (strip.isUpdating() && (millis() - t0 < 15)) yield(); // be nice, but not too nice. Waits up to 15ms to avoid glitches
+  #endif
   return file.read((uint8_t*)buffer, numberOfBytes);
 }