fix(web): add alt for logo in home page (#21887)

add `alt` for logo in home page

Author: kecrily

templates/home.tmpl

@@ -3,7 +3,7 @@
 	<div class="ui stackable middle very relaxed page grid">
 		<div class="sixteen wide center aligned centered column">
 			<div>
-				<img class="logo" width="220" height="220" src="{{AssetUrlPrefix}}/img/logo.svg"/>
+				<img class="logo" width="220" height="220" src="{{AssetUrlPrefix}}/img/logo.svg" alt="{{.locale.Tr "logo"}}"/>
 			</div>
 			<div class="hero">
 				<h1 class="ui icon header title">