fix(css): add fr style

- continue #30
- https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.discussionTools.init.styles|ext.uls.interlanguage|ext.visualEditor.desktopArticleTarget.noscript|ext.wikimediaBadges|mediawiki.ui.button,icon|skins.vector.icons,styles|wikibase.client.init&only=styles&skin=vector
- https://fr.wikipedia.org/w/load.php?lang=fr&modules=site.styles&only=styles&skin=vector
- add search icon search.svg

static/w/skins/Vector/resources/common/images/search.svg

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20">
+	<title>
+		search
+	</title>
+	<path fill-rule="evenodd" d="M12.2 13.6a7 7 0 1 1 1.4-1.4l5.4 5.4-1.4 1.4-5.4-5.4zM13 8A5 5 0 1 1 3 8a5 5 0 0 1 10 0z"/>
+</svg>