Refactor PiDay feature: clean up comments, adjust element creation, and add background mode support

Jellyfin.Plugin.Seasonals/Web/piday.js

@@ -1,13 +1,13 @@
-// 1. Read Configuration
 const config = window.SeasonalsPluginConfig?.PiDay || {};
 
 const enabled = config.EnablePiDay !== undefined ? config.EnablePiDay : true;
-const maxTrails = config.SymbolCount || 25; // Directly mapped, smaller default
+const maxTrails = config.SymbolCount || 25; 
+const backgroundMode = config.EnablePiDayBackground !== undefined ? config.EnablePiDayBackground : false;
 
 let msgPrinted = false;
 let isHidden = false;
 
-// 2. Toggle Function
+// Toggle Function
 function togglePiDay() {
   const container = document.querySelector('.piday-container');
   if (!container) return;
@@ -38,7 +38,6 @@ function togglePiDay() {
   }
 }
 
-// 3. MutationObserver
 const observer = new MutationObserver(togglePiDay);
 observer.observe(document.body, {
   childList: true,
@@ -46,13 +45,13 @@ observer.observe(document.body, {
   attributes: true
 });
 
-// 4. Element Creation
 function createElements() {
   const container = document.querySelector('.piday-container') || document.createElement('div');
 
   if (!document.querySelector('.piday-container')) {
     container.className = 'piday-container';
     container.setAttribute('aria-hidden', 'true');
+    if (backgroundMode) container.style.zIndex = '5';
     document.body.appendChild(container);
   }
 
@@ -155,7 +154,6 @@ function createElements() {
   });
 }
 
-// 5. Initialization
 function initializePiDay() {
   if (!enabled) return;
   createElements();