feat: add playsinline attribute to video elements for improved mobile playback

docs/upscaler/index.html

@@ -311,6 +311,7 @@
                                     controls
                                     loop
                                     muted
+                                    playsinline
                                     preload="auto"
                                 >
                                     <source
@@ -324,6 +325,7 @@
                                     id="resultVideoOriginal"
                                     class="comparison-img original absolute inset-0 w-full h-full bg-slate-900 object-contain"
                                     loop
+                                    playsinline
                                     preload="auto"
                                 >
                                     <source