UI: Fixes for repo topic editor (#5971)

- Properly hides the edit interface when saving a empty topic list
- Align the Done button with the edit box

public/js/index.js

@@ -2635,16 +2635,15 @@ function initTopicbar() {
         }, function(data, textStatus, xhr){
             if (xhr.responseJSON.status === 'ok') {
                 viewDiv.children(".topic").remove();
-                if (topics.length === 0) {
-                    return
-                }
+                if (topics.length) {
                     var topicArray = topics.split(",");
 
                     var last = viewDiv.children("a").last();
                     for (var i=0; i < topicArray.length; i++) {
                         $('<div class="ui green basic label topic" style="cursor:pointer;">'+topicArray[i]+'</div>').insertBefore(last)
                     }
-                editDiv.css('display', 'none'); // hide Semantic UI Grid
+                }
+                editDiv.css('display', 'none');
                 viewDiv.show();
             }
         }).fail(function(xhr){

templates/repo/home.tmpl

@@ -41,7 +41,7 @@
 				</div>
 			</div>
 			<div class="two wide column">
-				<a class="ui compact button primary" href="javascript:;" id="save_topic"
+				<a class="ui button primary" href="javascript:;" id="save_topic"
 				data-link="{{.RepoLink}}/topics">{{.i18n.Tr "repo.topic.done"}}</a>
 			</div>
 		</div>