fix(button-dropdown): Broken styles on reply/reply-all button dropdown

src/flux/stores/database-store.coffee

@@ -417,7 +417,7 @@ class DatabaseStore extends NylasStore
     # We can only use WHERE IN for up to ~250 items at a time. Run a query for
     # every 100 items and then combine the results before returning.
     Promise.all(promises).then (results) =>
-      all = {};
+      all = {}
       all = _.extend(all, result) for result in results
       Promise.resolve(all)
 

static/components/button-dropdown.less

@@ -21,6 +21,7 @@
       height: 32px;
       padding-top: 7px;
       line-height: 18px;
+      border-radius: 4px 0 0 4px;
     }
   }
 
@@ -65,7 +66,7 @@
     line-height: 14px;
     position: absolute;
     right: -1px; // -1, because of the border above
-
+    white-space:nowrap;
     display:none;
 
     .menu {