FIX: prevents click on select-box to close timeline-container on mobile

app/assets/javascripts/discourse/components/dropdown-select-box/dropdown-header.js.es6

@@ -3,5 +3,5 @@ import SelectBoxHeaderComponent from "discourse/components/select-box/select-box
 export default SelectBoxHeaderComponent.extend({
   layoutName: "components/dropdown-select-box/dropdown-header",
 
-  classNames: ["dropdown-header"],
+  classNames: ["dropdown-header"]
 });

app/assets/javascripts/discourse/components/select-box.js.es6

@@ -49,6 +49,10 @@ export default Ember.Component.extend({
 
   castInteger: false,
 
+  click(event) {
+    event.stopPropagation();
+  },
+
   filterFunction: function(content) {
     return (selectBox) => {
       const filter = selectBox.get("filter").toLowerCase();

app/assets/javascripts/discourse/components/select-box/select-box-header.js.es6

@@ -9,8 +9,9 @@ export default Ember.Component.extend({
     this._setCaretIcon();
   },
 
-  click() {
+  click(event) {
     this.sendAction("onToggle");
+    event.stopPropagation();
   },
 
   _setCaretIcon() {

app/assets/stylesheets/common/components/dropdown-select-box.scss

@@ -55,6 +55,7 @@
         display: block;
         font-size: 1em;
         color: $primary;
+        padding: 0;
       }
 
       .desc {