Refactor SubpageRain to use script tag for Alpine data, fixing build error

src/components/SubpageRain.astro

@@ -1,9 +1,9 @@
 ---
 // src/components/SubpageRain.astro
 ---
-<!-- Subpage: Rain Detail -->
-<div x-show="currentPage === 'page-rain'" x-cloak x-transition:enter="transition ease-out duration-500" x-transition:enter-start="opacity-0 translate-y-4" x-transition:enter-end="opacity-100 translate-y-0" class="min-h-screen pt-28 pb-24 px-6 lg:px-8 bg-stone-950 relative overflow-hidden" 
-    x-data="{ 
+<script is:inline>
+window.rainData = function() {
+    return { 
         rainIntensity: 50, 
         wind: 0,
         lofiFilter: 800,
@@ -23,7 +23,6 @@
             try {
                 this.audioCtx = new (window.AudioContext || window.webkitAudioContext)();
                 
-                // Erzeuge weißes Rauschen
                 let bufferSize = 2 * this.audioCtx.sampleRate;
                 let noiseBuffer = this.audioCtx.createBuffer(1, bufferSize, this.audioCtx.sampleRate);
                 let output = noiseBuffer.getChannelData(0);
@@ -35,7 +34,6 @@
                 this.noiseNode.buffer = noiseBuffer;
                 this.noiseNode.loop = true;
                 
-                // Tiefpassfilter für den "Dumpf-Lofi"-Effekt
                 this.filterNode = this.audioCtx.createBiquadFilter();
                 this.filterNode.type = 'lowpass';
                 this.filterNode.frequency.setValueAtTime(this.lofiFilter, this.audioCtx.currentTime);
@@ -61,7 +59,13 @@
                 this.filterNode.frequency.linearRampToValueAtTime(this.lofiFilter, this.audioCtx.currentTime + 0.2);
             }
         }
-    }" 
+    };
+}
+</script>
+
+<!-- Subpage: Rain Detail -->
+<div x-show="currentPage === 'page-rain'" x-cloak x-transition:enter="transition ease-out duration-500" x-transition:enter-start="opacity-0 translate-y-4" x-transition:enter-end="opacity-100 translate-y-0" class="min-h-screen pt-28 pb-24 px-6 lg:px-8 bg-stone-950 relative overflow-hidden" 
+    x-data="window.rainData()" 
     x-init="generateDrops(rainIntensity); $watch('rainIntensity', value => { generateDrops(value); updateAudio() }); $watch('lofiFilter', value => updateAudio()); $watch('currentPage', val => val === 'page-rain' && initAudio())">
     
     <!-- Rain Container (Full Screen on this page) -->