feat(ux): add episode description to episode cards

<article class="flex w-full p-3 shadow border-3 bg-elevated rounded-conditional-2xl gap-x-2 <?= $episode->is_premium ? 'border-accent-base' : 'border-transparent' ?>">

    <div class="relative flex-shrink-0 w-20">

    <div class="relative flex-shrink-0 w-20 h-20">

        <time class="absolute px-1 text-xs font-semibold text-white rounded bottom-2 right-2 bg-black/75" datetime="PT<?= round($episode->audio->duration, 3) ?>S">

            <?= format_duration((int) $episode->audio->duration) ?>

        </time>

                <?= episode_numbering($episode->number, $episode->season_number, 'text-xs font-semibold border-subtle text-skin-muted px-1 border mr-2 !no-underline', true) ?>

                <?= relative_time($episode->published_at, 'text-xs whitespace-nowrap text-skin-muted') ?>

            </div>

            <h2 class="flex-1 mt-1 font-semibold leading-tight line-clamp-2"><a class="hover:underline" href="<?= $episode->link ?>"><?= esc($episode->title) ?></a></h2>

            <h2 class="flex-1 mt-1 font-semibold line-clamp-2"><a class="hover:underline" href="<?= $episode->link ?>"><?= esc($episode->title) ?></a></h2>

            <p class="text-xs text-gray-600 md:text-sm line-clamp-3"><?= $episode->description ?></p>

        </div>

        <?php if ($episode->is_premium && ! is_unlocked($podcast->handle)): ?>

            <a href="<?= route_to('episode', $episode->podcast->handle, $episode->slug) ?>" class="p-3 rounded-full bg-brand bg-accent-base text-accent-contrast hover:bg-accent-hover focus:ring-accent" title="<?= lang('PremiumPodcasts.unlock_episode') ?>" data-tooltip="bottom">