fix: Remove undefined matrixHtml reference

v1.3.148:
- Fixed JavaScript error: matrixHtml is not defined
- Removed duplicate table population code
- bodyRows.innerHTML already contains the matrix HTML

VERSION

@@ -1 +1 @@
-1.3.147
+1.3.148

app/customers/frontend/customer_detail.html

@@ -2317,10 +2317,6 @@ function renderBillingMatrix(matrix) {
         </tr>`;
     }).join('');
     
-    // Populate table body
-    const tableBody = document.getElementById('matrixBodyRows');
-    tableBody.innerHTML = matrixHtml;
-    
     // Show search container if there are products
     const searchContainer = document.getElementById('matrixSearchContainer');
     if (matrix.products.length > 0) {