fix(comments): expand long comment on click

This is a temporary fix that only applies while the server is still using
Vue 2.x (or `@nextcloud/vue` 8.x). Once migrated to Vue 3.x, this fix
may be reverted.

Signed-off-by: Edward Ly <contact@edward.ly>

apps/comments/src/components/Comment.vue

@@ -95,7 +95,7 @@
 				:class="{'comment__message--expanded': expanded}"
 				:text="richContent.message"
 				:arguments="richContent.mentions"
-				@click="onExpand" />
+				@click.native="onExpand" />
 		</div>
 	</component>
 </template>