feat: make json feed reusable

src/feeds/follow.json.liquid

@@ -1,21 +1,11 @@
 ---
+layout: null
 permalink: /feeds/follow.json
 ---
-{% assign posts = follow.posts %}
-{
-"version": "https://jsonfeed.org/version/1",
-"title": "All activity • Cory Dransfeldt",
-"icon": "https://coryd.dev/static/images/avatar.webp",
-"home_page_url": "https://coryd.dev",
-"feed_url": "https://coryd.dev/follow.json",
-"items": [{% for item in posts %}
-  {
-  "id": "{{ item.id }}",
-  "title": "{{ item.title }}",
-  "url": "{{ item.url }}",
-  "content_text": "{{ item.title }} {{ item.url }}",
-  "date_published": "{{ item.date_published | date: "%Y-%m-%dT%H:%M:%S-08:00" }}"
-  }{% if not forloop.last %},{% endif %}
-{% endfor %}
-]
-}
+{% render "partials/feeds/json.liquid"
+  permalink:'/feeds/follow'
+  title:'Follow • Cory Dransfeldt'
+  data:follow.posts
+  updated:follow.posts[0].date_published
+  site:site
+%}