feat(webui): start upload on Enter press

webui/src/lib/components/AddModal.svelte

@@ -73,9 +73,20 @@
 			progress = {};
 		}
 	}
+
+	function onKeydown(event: KeyboardEvent) {
+		if (!files.length) return;
+		if (event.key === 'Enter') {
+			event.preventDefault();
+			upload();
+		}
+		if (event.key === 'Escape') {
+			reset();
+		}
+	}
 </script>
 
-<svelte:body on:keydown={(ev) => ev.key === 'Escape' && reset()} />
+<svelte:body on:keydown={onKeydown} />
 
 <!-- svelte-ignore a11y-click-events-have-key-events a11y-no-static-element-interactions -->
 <div class="addmodal-container" class:visible class:uploading on:click={reset}>