Port templates to NodeBB 4.14 benchpress escaping

NodeBB 4.14 registers a real __escape for template rendering (4.13 used
identity), so raw-HTML output must use the double-brace forms:
- HTML helpers: {{buildAvatar(...)}}, {{buildCategoryIcon(...)}}, etc.
- Pre-rendered HTML fields: {{txEscape(content)}} / {{./descriptionParsed}}
- Token-bearing text (nav labels, category names): {{tx(...)}}
- emails/partials/post-queue-body.tpl also adopts the 4.14 data shape
  (notification.category/topic/user/content).

Mirrors the harmony 2.2.72 -> 3.0.15 and core 4.13.2 -> 4.14.0 diffs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

templates/partials/topics_list.tpl

@@ -1,9 +1,9 @@
 <ul component="category" class="topics-list westgate-topics-list list-unstyled" itemscope itemtype="http://www.schema.org/ItemList" data-nextstart="{nextStart}" data-set="{set}">
 
 	{{{ each topics }}}
-	<li component="category/topic" class="westgate-topic-row category-item hover-parent d-flex flex-column flex-lg-row align-items-start {function.generateTopicClass}" <!-- IMPORT partials/data/category.tpl -->>
+	<li component="category/topic" class="westgate-topic-row category-item hover-parent d-flex flex-column flex-lg-row align-items-start {generateTopicClass(@value)}" <!-- IMPORT partials/data/category.tpl -->>
 		<link itemprop="url" content="{config.relative_path}/topic/{./slug}" />
-		<meta itemprop="name" content="{function.stripTags, ./title}" />
+		<meta itemprop="name" content="{./title}" />
 		<meta itemprop="itemListOrder" content="descending" />
 		<meta itemprop="position" content="{increment(./index, "1")}" />
 		<a id="{./index}" data-index="{./index}" component="topic/anchor"></a>
@@ -11,7 +11,7 @@
 		<div class="d-flex p-0 col-12 col-lg-7 gap-2 gap-lg-3 pe-2 align-items-start {{{ if config.theme.mobileTopicTeasers }}}mb-2 mb-lg-0{{{ end }}}">
 			<div class="flex-shrink-0 position-relative">
 				<a class="d-inline-block text-decoration-none avatar-tooltip" title="{./user.displayname}" href="{{{ if ./user.userslug }}}{config.relative_path}/user/{./user.userslug}{{{ else }}}#{{{ end }}}">
-					{buildAvatar(./user, "40px", true)}
+					{{buildAvatar(./user, "40px", true)}}
 				</a>
 				{{{ if showSelect }}}
 				<div class="checkbox position-absolute top-100 start-50 translate-middle-x pt-2 m-0 d-none d-lg-flex" style="max-width:max-content">
@@ -51,7 +51,7 @@
 					{{{each ./icons}}}<span class="lh-1">{@value}</span>{{{end}}}
 
 					{{{ if (!template.category || (cid != ./cid)) }}}
-					{buildCategoryLabel(./category, "a", "border")}
+					{{buildCategoryLabel(./category, "a", "border")}}
 					{{{ end }}}
 
 					<span data-tid="{./tid}" component="topic/tags" class="lh-1 tag-list d-flex flex-wrap gap-1 {{{ if !./tags.length }}}hidden{{{ end }}}">
@@ -114,12 +114,12 @@
 					{{{ else }}}
 					{{{ if ./teaser.pid }}}
 					<div class="ps-2">
-						<a href="{{{ if ./teaser.user.userslug }}}{config.relative_path}/user/{./teaser.user.userslug}{{{ else }}}#{{{ end }}}" class="text-decoration-none avatar-tooltip" title="{./teaser.user.displayname}">{buildAvatar(./teaser.user, "18px", true)}</a>
+						<a href="{{{ if ./teaser.user.userslug }}}{config.relative_path}/user/{./teaser.user.userslug}{{{ else }}}#{{{ end }}}" class="text-decoration-none avatar-tooltip" title="{./teaser.user.displayname}">{{buildAvatar(./teaser.user, "18px", true)}}</a>
 						<a class="permalink text-muted timeago text-xs" href="{config.relative_path}/topic/{./slug}/{./teaser.index}" title="{./teaser.timestampISO}" aria-label="[[global:lastpost]]"></a>
 					</div>
 					<div class="post-content text-xs ps-2 line-clamp-sm-2 lh-sm text-break position-relative flex-fill">
 						<a class="stretched-link" tabindex="-1" href="{config.relative_path}/topic/{./slug}/{./teaser.index}" aria-label="[[global:lastpost]]"></a>
-						{./teaser.content}
+						{{txEscape(./teaser.content)}}
 					</div>
 					{{{ end }}}
 					{{{ end }}}