Como criar uma coluna de Tags?

You’d have to override the handlebars template for the topic list items as well as the topic list header (see Developer’s guide to Discourse Themes )

Adding this to admin > customize > themes > edit HTML/CSS > desktop > </head> gives you something to start with. You’ll need to add custom CSS to style as you see fit.

<script type="text/x-handlebars" data-template-name="topic-list-header.raw">
    {{#if bulkSelectEnabled}}
      <th class="bulk-select">
        {{#if canBulkSelect}}
          {{raw "flat-button" class="bulk-select" icon="list" title="topics.bulk.toggle"}}
        {{/if}}
      </th>
    {{/if}}
    {{raw "topic-list-header-column" order='default' name=listTitle bulkSelectEnabled=bulkSelectEnabled showBulkToggle=toggleInTitle canBulkSelect=canBulkSelect}}
    {{#if showPosters}}
      {{raw "topic-list-header-column" order='posters'}}
    {{/if}}
    {{raw "topic-list-header-column" sortable=sortable number='true' order='posts' name='replies'}}
    {{#if showLikes}}
      {{raw "topic-list-header-column" sortable=sortable number='true' order='likes' name='likes'}}
    {{/if}}
      <th>Tags</th>
    {{#if showOpLikes}}
      {{raw "topic-list-header-column" sortable=sortable number='true' order='op_likes' name='likes'}}
    {{/if}}
    {{raw "topic-list-header-column" sortable=sortable number='true' order='views' name='views'}}
    {{raw "topic-list-header-column" sortable=sortable number='true' order='activity' name='activity'}}
</script>


<script type="text/x-handlebars" data-template-name="list/topic-list-item.raw">
    {{#if bulkSelectEnabled}}
  <td class="bulk-select">
    <input type="checkbox" class="bulk-select">
  </td>
{{/if}}

{{!--
  The `~` syntax strip spaces between the elements, making it produce
  `<a class=topic-post-badges>Some text</a><span class=topic-post-badges>`,
  with no space between them.
  This causes the topic-post-badge to be considered the same word as "text"
  at the end of the link, preventing it from line wrapping onto its own line.
--}}
<td class='main-link clearfix' colspan="1">
  <span class='link-top-line'>
    {{~raw-plugin-outlet name="topic-list-before-status"}}
    {{~raw "topic-status" topic=topic}}
    {{~topic-link topic class="raw-link raw-topic-link"}}
    {{~#if topic.featured_link}}
    {{~topic-featured-link topic}}
    {{~/if}}
    {{~raw-plugin-outlet name="topic-list-after-title"}}
    {{~#if showTopicPostBadges}}
    {{~raw "topic-post-badges" unread=topic.unread newPosts=topic.displayNewPosts unseen=topic.unseen url=topic.lastUnreadUrl newDotText=newDotText}}
    {{~/if}}
  </span>
  <div class="link-bottom-line">
    {{#unless hideCategory}}
      {{#unless topic.isPinnedUncategorized}}
        {{category-link topic.category}}
      {{/unless}}
    {{/unless}}
    {{raw "list/action-list" topic=topic postNumbers=topic.liked_post_numbers className="likes" icon="heart"}}
  </div>
  {{#if expandPinned}}
    {{raw "list/topic-excerpt" topic=topic}}
  {{/if}}
</td>

{{#if showPosters}}
  {{raw "list/posters-column" posters=topic.featuredUsers}}
{{/if}}

{{raw "list/posts-count-column" topic=topic}}

{{#if showLikes}}
  <td class="num likes">
    {{#if hasLikes}}
      <a href='{{topic.summaryUrl}}'>
        {{number topic.like_count}} {{d-icon "heart"}}</td>
  </a>
{{/if}}
{{/if}}


<td class="tags">
    {{discourse-tags topic mode="list" tagsForUser=tagsForUser}}
</td>

{{#if showOpLikes}}
  <td class="num likes">
    {{#if hasOpLikes}}
      <a href='{{topic.summaryUrl}}'>
        {{number topic.op_like_count}} {{d-icon "heart"}}</td>
  </a>
{{/if}}
{{/if}}

<td class="num views {{topic.viewsHeat}}">{{number topic.views numberKey="views_long"}}</td>

{{raw "list/activity-column" topic=topic class="num" tagName="td"}}

    
</script>