Apply new icon

src/main/twirl/main.scala.html

@@ -43,7 +43,7 @@
               <span class="icon-bar"></span>
             </button>
             <a class="brand" href="@path/">
-              <img src="@assets/common/images/gitbucket.png"/>GitBucket
+              <img src="@assets/common/images/gitbucket.png" style="width: 24px; height: 24px;"/>GitBucket
               @defining(servlet.AutoUpdate.getCurrentVersion){ version =>
                 <span class="header-version">@version.majorVersion.@version.minorVersion</span>
               }