hls, webrtc: Add disablepictureinpicture param (#4883)

ref: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/video#disablepictureinpicture

Author: bp0

internal/servers/hls/index.html

@@ -187,6 +187,7 @@
 	video.muted = parseBoolString(params.get('muted'), true);
 	video.autoplay = parseBoolString(params.get('autoplay'), true);
 	video.playsInline = parseBoolString(params.get('playsinline'), true);
+	video.disablepictureinpicture = parseBoolString(params.get('disablepictureinpicture'), false);
 	defaultControls = video.controls;
 };
 

internal/servers/webrtc/read_index.html

@@ -78,6 +78,7 @@
   video.muted = parseBoolString(params.get('muted'), true);
   video.autoplay = parseBoolString(params.get('autoplay'), true);
   video.playsInline = parseBoolString(params.get('playsinline'), true);
+  video.disablepictureinpicture = parseBoolString(params.get('disablepictureinpicture'), false);
   defaultControls = video.controls;
 };