FIX: Similar topics relying on widget search menu (#25586)

app/assets/javascripts/discourse/app/templates/composer/similar-topics.hbs

@@ -3,8 +3,9 @@
 <h3>{{i18n "composer.similar_topics"}}</h3>
 
 <ul class="topics">
-  <MountWidget
-    @widget="search-result-topic"
-    @args={{hash results=this.message.similarTopics}}
-  />
+  {{#each this.message.similarTopics as |topic|}}
+    <div class="similar-topic">
+      <SearchMenu::Results::Type::Topic @result={{topic}} />
+    </div>
+  {{/each}}
 </ul>

app/assets/stylesheets/desktop/compose.scss

@@ -187,6 +187,10 @@
 .similar-topics {
   background-color: var(--tertiary-low);
 
+  .similar-topic {
+    margin-bottom: 0.5em;
+  }
+
   a[href] {
     color: var(--primary);
   }
@@ -195,7 +199,6 @@
     background-color: var(--tertiary);
   }
 
-  .search-link {
   .topic-title {
     flex: 0 1 auto;
     margin-right: 0.5em;
@@ -208,6 +211,7 @@
   }
   .topic-title,
   .blurb {
+    margin-bottom: 0.5em;
     .d-icon {
       color: var(--primary-high);
     }
@@ -231,7 +235,6 @@
       }
     }
   }
-  }
 }
 
 .composer-popup:nth-of-type(2) {