Fix missing keyboard focus ability and feedback for sessions action menu

Signed-off-by: Jan-Christoph Borchardt <hey@jancborchardt.net>

settings/css/settings.scss

@@ -458,7 +458,7 @@ table.nostyle {
 	}
 	.token-list {
 		td > a.icon-more {
-			transition: opacity 0.5s;
+			transition: opacity var(--animation-quick);
 		}
 		a.icon-more {
 			padding: 14px;
@@ -469,8 +469,9 @@ table.nostyle {
 		}
 		tr {
 			&:hover td > a.icon,
+			td > a.icon:focus,
 			&.active td > a.icon {
-				opacity: 0.7;
+				opacity: 1;
 			}
 		}
 	}

settings/js/templates/authtoken.handlebars

@@ -8,7 +8,7 @@
 	<td>
 		<span class="last-activity has-tooltip" title="{{lastActivityTime}}">{{lastActivity}}</span></td>
 	<td class="more">
-		{{#if showMore}}<a class="icon icon-more"/>{{/if}}
+		{{#if showMore}}<a class="icon icon-more" tabindex="0"/>{{/if}}
 		<div class="popovermenu menu">
 		{{#if canScope}}
 			<li><span class="menuitem">