Update rain animation and refactor rain.js comments for clarity

Jellyfin.Plugin.Seasonals/Web/rain.js

@@ -1,4 +1,3 @@
-// 1. Read Configuration
 const config = window.SeasonalsPluginConfig?.Rain || {};
 
 const enabled = config.EnableRain !== undefined ? config.EnableRain : true;
@@ -8,7 +7,7 @@ const rainSpeed = config.RainSpeed || 1.0;
 
 let msgPrinted = false;
 
-// 2. Toggle Function
+// Toggle Function
 function toggleRain() {
   const container = document.querySelector('.rain-container');
   if (!container) return;
@@ -33,7 +32,6 @@ function toggleRain() {
   }
 }
 
-// 3. MutationObserver
 const observer = new MutationObserver(toggleRain);
 observer.observe(document.body, {
   childList: true,
@@ -41,7 +39,6 @@ observer.observe(document.body, {
   attributes: true
 });
 
-// 4. Element Creation
 function createElements() {
   const container = document.querySelector('.rain-container') || document.createElement('div');
 
@@ -67,7 +64,6 @@ function createElements() {
   }
 }
 
-// 5. Initialization
 function initializeRain() {
   if (!enabled) return;
   createElements();