remove extra margin at project detail top

src/components/Project/Detail/ProjectHeader.vue

@@ -273,24 +273,20 @@ export default {
 
 .project-header {
 
-  .row {
-    margin-top: 3em;
+  .row .right-column {
+    display: flex;
+    flex-direction: column;
 
-    .right-column {
-      display: flex;
-      flex-direction: column;
-
-      .ui.buttons {
-        justify-content: flex-end;
-        a.ui.button {
-          flex-grow: 0; /* avoid stretching buttons */
-        }
+    .ui.buttons {
+      justify-content: flex-end;
+      a.ui.button {
+        flex-grow: 0; /* avoid stretching buttons */
       }
     }
-    .centered {
-      margin: auto;
-      text-align: center;
-    }
+  }
+  .centered {
+    margin: auto;
+    text-align: center;
   }
 }