[FIX] stock: fix barcode layout printing

Install stock, go to Configuration>Settings, activate "Storage
Locations". Go to Configuration>Locations select locations and print

The reported will not follow the documentation, barcode will be one
after the other and not side by side, arranged in a 2x2 grid.
Fixing require to apply style changes since new bootstrap
code is not handled well by wkhtmltopdf

opw-2162698

closes odoo/odoo#42967

X-original-commit: 7ac26d0ef5631cee38c29535531053fed6afce85
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/stock/report/report_location_barcode.xml

@@ -10,13 +10,21 @@
 
 <template id="report_location_barcode">
     <t t-call="web.html_container">
-        <div t-foreach="[docs[x:x+4] for x in range(0, len(docs), 4)]" t-as="page_docs" class="page article page_stock_location_barcodes">
-            <t t-foreach="page_docs" t-as="o">
+      <div t-foreach="[[docs[x:x+2], docs[x+2:x+4]] for x in range(0, len(docs), 4)]" t-as="page_docs" class="page article page_stock_location_barcodes">
+        <table height="1000">
+            <t t-foreach="page_docs" t-as="page_row">
+            <tr>
+              <t t-foreach="page_row" t-as="o">
                 <t t-if="o.barcode"><t t-set="content" t-value="o.barcode"/></t>
                 <t t-if="not o.barcode"><t t-set="content" t-value="o.name"/></t>
+                <td>
                 <img class="barcode" t-att-src="'/report/barcode/?type=%s&amp;value=%s&amp;width=%s&amp;height=%s&amp;humanreadable=1' % ('Code128', content, 600, 100)" alt="Barcode"/>
+                </td>
+              </t>
+            </tr>
             </t>
-        </div>
+        </table>
+      </div>
     </t>
 </template>
 </data>