fix: Restructure print_module layout - label preview on left side

- Changed main container to flexbox layout with gap
- Left column: Fixed width (400px) for label preview card
- Right column: Flexible width for data preview table
- Label preview now positioned on left as in original app
- Data table fills remaining space on the right
- Responsive flexbox layout preserves functionality

app/templates/modules/labels/print_module.html

@@ -113,7 +113,9 @@
     </a>
 </div> #}
 
-<div class="scan-container">
+<div class="scan-container" style="display: flex; gap: 15px; flex-wrap: nowrap;">
+    <!-- Left Column: Label Preview (Fixed width ~400px) -->
+    <div style="flex-shrink: 0; width: 400px;">
         <!-- Label Preview Card -->
         <div class="card scan-form-card">
             <div class="label-view-title" style="width: 100%; text-align: center; padding: 0 0 15px 0; font-size: 18px; font-weight: bold; letter-spacing: 0.5px;">Label View</div>
@@ -132,7 +134,7 @@
             </div>
             
             <!-- Label Preview Section -->
-        <div id="label-preview" style="padding: 10px; position: relative; background: #fafafa; width: 301px; height: 434.7px;">
+            <div id="label-preview" style="padding: 10px; position: relative; background: #fafafa; width: 301px; height: 434.7px; margin: 0 auto;">
             <!-- Label content rectangle -->
             <div id="label-content" style="position: absolute; top: 65.7px; left: 11.34px; width: 227.4px; height: 321.3px; background: white;">
                 <!-- Top row content: Company name (removed) -->
@@ -299,7 +301,10 @@
             </div>
         </div>
     </div>
+    </div>
 
+    <!-- Right Column: Data Preview (Flexible width) -->
+    <div style="flex: 1; min-width: 0;">
         <!-- Data Preview Card -->
         <div class="card scan-table-card">
             <h3>Data Preview (Unprinted Orders)</h3>
@@ -332,6 +337,7 @@
         </div>
     </div>
     </div>
+</div>
 
 <!-- JavaScript Libraries -->
 <!-- JsBarcode library for real barcode generation -->