fixed alignment in button

app/assets/javascripts/lib/utils/common_utils.js

@@ -86,8 +86,9 @@
       // This is required to handle non-unicode characters in hash
       hash = decodeURIComponent(hash);
 
-      var fixedTabs = document.querySelector('.js-tabs-affix');
-      var fixedNav = document.querySelector('.navbar-gitlab');
+      const fixedTabs = document.querySelector('.js-tabs-affix');
+      const fixedDiffStats = document.querySelector('.js-diff-files-changed.is-stuck');
+      const fixedNav = document.querySelector('.navbar-gitlab');
 
       var adjustment = 0;
       if (fixedNav) adjustment -= fixedNav.offsetHeight;
@@ -104,6 +105,11 @@
         if (fixedTabs) {
           adjustment -= fixedTabs.offsetHeight;
         }
+
+        if (fixedDiffStats) {
+          adjustment -= fixedDiffStats.offsetHeight;
+        }
+
         window.scrollBy(0, adjustment);
       }
     };

app/views/projects/diffs/_stats.html.haml

@@ -4,7 +4,7 @@
   Showing
   %button.diff-stats-summary-toggler.js-diff-stats-dropdown{ type: "button", data: { toggle: "dropdown" } }<
     = pluralize(diff_files.size, "changed file")
-    = icon("caret-down fw")
+    = icon("caret-down", class: "prepend-left-5")
   %span.diff-stats-additions-deletions-expanded#diff-stats
     with
     %strong.cgreen #{sum_added_lines} additions
@@ -16,7 +16,7 @@
     %strong.cred<
       \-#{sum_removed_lines}
   .dropdown-menu.diff-file-changes
-    = dropdown_filter("Search file")
+    = dropdown_filter("Search files")
     .dropdown-content
       %ul
         - diff_files.each do |diff_file|