[Branch View] show "New Pull Request" Button only if posible (#7977)

* add check Commits Ahead is gt 0

* code format
to start drone-ci test again
and formate code is also nice :)

templates/repo/branch/list.tmpl

@@ -75,7 +75,7 @@
 									</td>
 									<td class="two wide right aligned">
 										{{if not .LatestPullRequest}}
-											{{if and (not .IsDeleted) $.AllowsPulls}}
+											{{if and (not .IsDeleted) $.AllowsPulls (gt .CommitsAhead 0)}}
 											<a href="{{$.RepoLink}}/compare/{{$.DefaultBranch | EscapePound}}...{{if ne $.Repository.Owner.Name $.Owner.Name}}{{$.Owner.Name}}:{{end}}{{.Name | EscapePound}}">
 												<button id="new-pull-request" class="ui compact basic button">{{$.i18n.Tr "repo.pulls.compare_changes"}}</button>
 											</a>

templates/repo/graph.tmpl

@@ -2,8 +2,6 @@
 <div class="repository commits">
 	{{template "repo/header" .}}
 	<div class="ui container">
-
-
 	  <div id="git-graph-container" class="ui segment">
 		  <h1>{{.i18n.Tr "repo.commit_graph"}}</h1>
 	    <div id="rel-container">
@@ -37,9 +35,6 @@
 	      </ul>
 	    </div>
 	  </div>
-
-
-
 	</div>
 </div>
 {{template "base/footer" .}}