Replace RSS feed icon

Use a flat icon from the Open Iconic collection for the RSS feed.
Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

web/html/images/rss.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="8" height="8" viewBox="0 0 8 8">
+  <path style="fill:#3366aa;fill-opacity:1" d="M0 0v2c3.33 0 6 2.67 6 6h2c0-4.41-3.59-8-8-8zm0 3v2c1.67 0 3 1.33 3 3h2c0-2.75-2.25-5-5-5zm0 3v2h2c0-1.11-.9-2-2-2z" />
+</svg>

web/html/index.php

@@ -172,7 +172,6 @@ if (!empty($tokens[1]) && '/' . $tokens[1] == get_pkg_route()) {
 	case "/css/archnavbar/archlogo.png":
 	case "/css/archnavbar/aurlogo.png":
 	case "/images/favicon.ico":
-	case "/images/feed-icon-14x14.png":
 	case "/images/titlelogo.png":
 	case "/images/x.png":
 		header("Content-Type: image/png");
@@ -182,6 +181,7 @@ if (!empty($tokens[1]) && '/' . $tokens[1] == get_pkg_route()) {
 	case "/images/pencil.min.svg":
 	case "/images/pin.min.svg":
 	case "/images/unpin.min.svg":
+	case "/images/rss.svg":
 		header("Content-Type: image/svg+xml");
 		readfile("./$path");
 		break;

web/template/stats/updates_table.php

 <h3><?= __("Recent Updates") ?></h3>
 
-<a href="<?= get_uri('/rss/') ?>" title="Arch Package Updates RSS Feed" class="rss-icon"><img src="/images/feed-icon-14x14.png" alt="RSS Feed" /></a>
+<a href="<?= get_uri('/rss/') ?>" title="Arch Package Updates RSS Feed" class="rss-icon"><img src="/images/rss.svg" alt="RSS Feed" /></a>
 
 <table>
 	<tbody>