Put back media indicators for collapsed cw'd statuses

It looks like the refactor in 7a25160d accidentally moved the icons that indicate whether collapsed cw'd statuses have media attachments (added in !1056 (merged)) onto collapsed tall statuses instead. This adds the indicators back for cw'd statuses; I don't see any harm in having them for tall statuses as well, but I can remove them there if you'd prefer.

src/components/status_content/status_content.vue

@@ -69,7 +69,21 @@
         href="#"
         class="cw-status-hider"
         @click.prevent="toggleShowMore"
-      >{{ $t("general.show_more") }}</a>
+      >
+        {{ $t("general.show_more") }}
+        <span
+          v-if="hasImageAttachments"
+          class="icon-picture"
+        />
+        <span
+          v-if="hasVideoAttachments"
+          class="icon-video"
+        />
+        <span
+          v-if="status.card"
+          class="icon-link"
+        />
+      </a>
       <a
         v-if="showingMore"
         href="#"