erp5_document_scanner: add related less file

bt5/erp5_document_scanner/PathTemplateItem/web_page_module/scanner_gadget_document_scanner_css.css

@@ -102,12 +102,6 @@ div[data-gadget-url$="gadget_document_scanner.html"] .camera-input {
   /* Never limit the container height here */
   position: relative;
   width: 100%;
-  /*
-    img {
-      max-width: 100%;
-      width: 100%;
-    }
-*/
 }
 div[data-gadget-url$="gadget_document_scanner.html"] .img-container img,
 div[data-gadget-url$="gadget_document_scanner.html"] .camera-input img,

bt5/erp5_document_scanner/PathTemplateItem/web_page_module/scanner_gadget_document_scanner_css.xml

@@ -244,7 +244,7 @@
                   </item>
                   <item>
                       <key> <string>serial</string> </key>
-                      <value> <string>982.61619.4758.34133</string> </value>
+                      <value> <string>982.62568.19112.61303</string> </value>
                   </item>
                   <item>
                       <key> <string>state</string> </key>
@@ -262,7 +262,7 @@
                           </tuple>
                           <state>
                             <tuple>
-                              <float>1585846327.08</float>
+                              <float>1585903332.52</float>
                               <string>UTC</string>
                             </tuple>
                           </state>

bt5/erp5_document_scanner/SkinTemplateItem/portal_skins/erp5_document_scanner/documentscannercss.less.txt

@@ -13,7 +13,6 @@ div[data-gadget-url$="gadget_document_scanner.html"] {
   .photo, .video, .camera-output, .canvas {
     max-width: 100%;
     width: auto;
-    max-height: 500px;
     filter: brightness(1);
     text-align: center;
   }
@@ -100,9 +99,13 @@ div[data-gadget-url$="gadget_document_scanner.html"] {
     height: calc(6em + 1px);
   }
 
-  .img-container {
+  .img-container, .camera-input {
     /* Never limit the container height here */
-    max-width: 100%;
+    position: relative;
+    width: 100%;
+    img, video {
+      max-height: 75vh;
+    }
   }
 
   .btn-thumbnail:before {