review tab: keep chapril banner on top

* the 'top' value (0px) for '.repository .diff-detail-box.sticky'
  classes is defined here:
  4a20eadfd7/web_src/less/_repository.less (L1610)
* the 'top' values (46px, 77px) for
  '.ui.attached.header.diff-file-header.sticky-2nd-row' classes is
  defined here:
  4a20eadfd7/web_src/less/_repository.less (L3102)

Update #5733

public/chapril-banner-v2.css

@@ -0,0 +1,21 @@
+/* 42px: height of the chapril banner */
+
+.repository .diff-detail-box.sticky {
+ top: 42px; /* default value (0) + 42px */
+}
+
+.ui.attached.header.diff-file-header.sticky-2nd-row {
+ top: 88px; /* default value (46px) + 42px */
+}
+
+@media (min-width: 768px) and (max-width: 991px) {
+ .ui.attached.header.diff-file-header.sticky-2nd-row {
+  top: 119px; /* default value (77px) + 42px */
+ }
+}
+
+@media (max-width: 767px) {
+ .ui.attached.header.diff-file-header.sticky-2nd-row {
+  top: 119px; /* default value (77px) + 42px */
+ }
+}

templates/custom/header.tmpl

@@ -1 +1,2 @@
 <link rel="stylesheet" type="text/css"  href="/Chapril-banner/v2/chapril-banner.css" />
+<link rel="stylesheet" type="text/css"  href="/assets/chapril-banner-v2.css" />