email brand hygiene (#11)

implements proper email hygiene, including templates and a language .json

Reviewed-on: #11
Co-authored-by: vickydotbat <vickydotbat@tutamail.com>
Co-committed-by: vickydotbat <vickydotbat@tutamail.com>

email/partials/post-queue-body.html

@@ -0,0 +1,18 @@
+<p><strong>[[post-queue:category]]</strong></p>
+<p><a href="{category.url}" style="color: #a8893f;">{category.name}</a></p>
+<p>
+  <strong
+    >{{{ if topic.tid }}}[[post-queue:topic]]{{{ else }}}[[post-queue:title]]{{{
+    end }}}</strong
+  >
+</p>
+<p>
+  {{{ if topic.url }}}<a href="{topic.url}" style="color: #a8893f;">{topic.title}</a>{{{ else
+  }}}{topic.title}{{{ end }}}
+</p>
+<p><strong>[[post-queue:user]]</strong></p>
+<p>
+  {{{ if user.url }}}<a href="{user.url}" style="color: #a8893f;">{user.username}</a>{{{ else
+  }}}{user.username}{{{ end }}}
+</p>
+<p style="color: #3a3340;">{content}</p>