Add Safari pinned tab icon (#2799)

Closes #2753

Signed-off-by: Bastian Rinsche <bastian.rinsche@gmail.com>

public/img/gitea-safari.svg

@@ -0,0 +1 @@
+<svg clip-rule="evenodd" fill-rule="evenodd" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="m83.046 35.842c10.395-.091 22.52-.636 42.972-1.719 12.367.282-4.316 74.37-26.594 76.038h-37.152c-8.48-.911-19.934-18.203-21.002-23.216-9.735-.215-34.086-2.695-35.192-29.423-.707-17.106 12.085-23.932 21.632-23.904 3.736.01 7.213.478 9.708.505 19.935 1.104 30.433 1.729 42.366 1.733l.021 21.503 3.241 1.61zm18.936 34.047-31.267-15.193-15.192 31.267 31.267 15.192zm-71.781-26.813c-12.443-.333-15.784 7.423-14.833 14.834 1.782 13.885 11.469 17.605 22.851 19.11-4.462-12.24-6.666-20.251-8.018-33.944z" transform="matrix(.128847 0 0 .128847 -.779534 -1.26275)"/><g transform="matrix(.128847 0 0 .128847 -.779534 -1.26275)"><g transform="matrix(.940904 -.338674 .338674 .940904 0 0)"><circle cx="49.065" cy="90.078" r="3.475"/><circle cx="36.81" cy="102.105" r="3.475"/><circle cx="46.484" cy="111.439" r="3.475"/></g><path d="m97.333 18.062h2.673v27.261h-2.673z" transform="matrix(.898609 .43875 -.447723 .916987 .406685 -.832937)"/><path d="m76.558 68.116c12.976 6.396 13.013 4.102 4.891 20.908" fill="none" stroke="#000" stroke-width="2.68"/></g></svg>

templates/base/head.tmpl

@@ -60,6 +60,7 @@
 	</script>
 
 	<link rel="shortcut icon" href="{{AppSubUrl}}/img/favicon.png" />
+	<link rel="mask-icon" href="{{AppSubUrl}}/img/gitea-safari.svg" color="#609926">
 	<link rel="preload" href="{{AppSubUrl}}/vendor/assets/font-awesome/css/font-awesome.min.css" as="style" onload="this.rel='stylesheet'">
 	<noscript><link rel="stylesheet" href="{{AppSubUrl}}/vendor/assets/font-awesome/css/font-awesome.min.css"></noscript>
 	<link rel="stylesheet" href="{{AppSubUrl}}/vendor/assets/octicons/octicons.min.css">