fix(nav): publish menu contrast, check-in toast and button layout

Use solid light plate + forced ink on 发布 items, notyf instead of alert,
and keep header check-in flex layout after success.

inc/helpers/aksrt-header-userbox.php

@@ -41,14 +41,14 @@ if (!function_exists('aksrt_header_user_checkin_btn')) :
 
 		if ($signed) {
 			return '<button type="button" class="but block c-yellow aksrt-header-checkin is-done" disabled>'
-				. '<i class="fas fa-calendar-check" aria-hidden="true"></i> '
-				. esc_html__('今日已签到', 'aksrt')
+				. '<i class="fas fa-calendar-check" aria-hidden="true"></i>'
+				. '<span>' . esc_html__('今日已签到', 'aksrt') . '</span>'
 				. '</button>';
 		}
 
 		return '<button type="button" class="but block c-yellow aksrt-header-checkin" data-aksrt-checkin="1">'
-			. '<i class="fas fa-calendar-check" aria-hidden="true"></i> '
-			. esc_html__('签到领取今日奖励', 'aksrt')
+			. '<i class="fas fa-calendar-check" aria-hidden="true"></i>'
+			. '<span>' . esc_html__('签到领取今日奖励', 'aksrt') . '</span>'
 			. '</button>';
 	}
 endif;