erp5_document_scanner: Add test to memory exhausted issue on mobile

bt5/erp5_document_scanner/PathTemplateItem/web_page_module/rjs_gadget_document_scanner_css.css

@@ -9,6 +9,9 @@ div[data-gadget-url$="gadget_document_scanner.html"] {
   div[data-gadget-url$="gadget_document_scanner.html"] .new-btn {
     min-width: 35%;
   }
+  div[data-gadget-url$="gadget_document_scanner.html"] .thumbnail-list > button {
+    max-width: 50%;
+  }
 }
 
 div[data-gadget-url$="gadget_document_scanner.html"] .photo,
@@ -96,7 +99,7 @@ div[data-gadget-url$="gadget_document_scanner.html"] .upload-error {
 div[data-gadget-url$="gadget_document_scanner.html"] .new-btn {
   font-size: 13pt;
   display: inline-grid !important;
-  padding: 18pt;
+  padding: 10pt;
   margin-left: 0.2em;
   border: 1px solid rgba(0, 0, 0, 0.14);
   border-radius: 0.325em;

bt5/erp5_document_scanner/PathTemplateItem/web_page_module/rjs_gadget_document_scanner_css.xml

@@ -244,7 +244,7 @@
                   </item>
                   <item>
                       <key> <string>serial</string> </key>
-                      <value> <string>981.59690.60488.51404</string> </value>
+                      <value> <string>981.60685.4437.46830</string> </value>
                   </item>
                   <item>
                       <key> <string>state</string> </key>
@@ -262,7 +262,7 @@
                           </tuple>
                           <state>
                             <tuple>
-                              <float>1581971251.8</float>
+                              <float>1582030989.14</float>
                               <string>UTC</string>
                             </tuple>
                           </state>