refactored 404 page, fixed copy image toast on mobile and filtered missing images to exclude sealed

src/pages/partials/card-modal.astro

@@ -242,45 +242,4 @@ const altSearchUrl = (card: any) => {
         </div>
         </div>
         </div>
-    </div>
-
-<script is:inline>
-
-    async function copyImage(img) {
-        try {
-            const canvas = document.createElement("canvas");
-            const ctx = canvas.getContext("2d");
-            canvas.width = img.naturalWidth;
-            canvas.height = img.naturalHeight;
-            ctx.drawImage(img, 0, 0);
-
-            const blob = await new Promise((resolve, reject) => {
-                canvas.toBlob(b => b ? resolve(b) : reject(new Error('toBlob failed')), 'image/png');
-            });
-            await navigator.clipboard.write([new ClipboardItem({ "image/png": blob })]);
-            showCopyToast('📋 Image copied!', '#198754');
-        } catch (err) {
-            console.error('Failed:', err);
-            showCopyToast('❌ Copy failed', '#dc3545');
-        }
-    }
-
-    function showCopyToast(message, color) {
-        const toast = document.createElement('div');
-        toast.textContent = message;
-        toast.style.cssText = `
-            position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
-            background: ${color}; color: white; padding: 10px 20px;
-            border-radius: 8px; font-size: 14px; z-index: 9999;
-            opacity: 0; transition: opacity 0.2s ease;
-            pointer-events: none;
-        `;
-        document.body.appendChild(toast);
-        requestAnimationFrame(() => toast.style.opacity = '1');
-        setTimeout(() => {
-            toast.style.opacity = '0';
-            toast.addEventListener('transitionend', () => toast.remove());
-        }, 2000);
-    }
-
-</script>
+    </div>