Merge branch 'ide-row-dropdown-scroll' into 'master'

Fixed Web IDE row dropdowns scrolling list incorrectly

Closes #49892

See merge request gitlab-org/gitlab-ce!20984

app/assets/javascripts/ide/components/new_dropdown/index.vue

@@ -35,7 +35,9 @@ export default {
   watch: {
     dropdownOpen() {
       this.$nextTick(() => {
-        this.$refs.dropdownMenu.scrollIntoView();
+        this.$refs.dropdownMenu.scrollIntoView({
+          block: 'nearest',
+        });
       });
     },
     mouseOver() {

spec/javascripts/ide/components/new_dropdown/index_spec.js

@@ -62,7 +62,9 @@ describe('new dropdown component', () => {
       vm.dropdownOpen = true;
 
       setTimeout(() => {
-        expect(vm.$refs.dropdownMenu.scrollIntoView).toHaveBeenCalled();
+        expect(vm.$refs.dropdownMenu.scrollIntoView).toHaveBeenCalledWith({
+          block: 'nearest',
+        });
 
         done();
       });