fix(topics): don't redirect to expole page. (#4938)

templates/repo/home.tmpl

@@ -25,7 +25,7 @@
 		</div>
 		<div class="ui repo-topic" id="repo-topic">
 		{{range .Topics}}<a class="ui green basic label topic" style="cursor:pointer;" href="/explore/repos?q={{.Name}}&topic=1">{{.Name}}</a>{{end}}
-		{{if .IsRepositoryAdmin}}<a id="manage_topic" style="cursor:pointer;margin-left:10px;" href="/explore/repos?q={{.Name}}&topic=1">{{.i18n.Tr "repo.topic.manage_topics"}}</a>{{end}}
+		{{if .IsRepositoryAdmin}}<a id="manage_topic" style="cursor:pointer;margin-left:10px;">{{.i18n.Tr "repo.topic.manage_topics"}}</a>{{end}}
 		</div>
 		{{if .IsRepositoryAdmin}}
 		<div class="ui repo-topic-edit grid form segment error" id="topic_edit" >