feat: added twitter cards metadata

Author: ErikBjare

_includes/head.pug

@@ -35,3 +35,5 @@ head
   script#mcjs
     | !function(c,h,i,m,p){m=c.createElement(h),p=c.getElementsByTagName(h)[0],m.async=1,m.src=i,p.parentNode.insertBefore(m,p)}(document,"script","https://chimpstatic.com/mcjs-connected/js/users/0c8e8132be874f0e23d3a9e74/8c84f7d9d83455b08e020d552.js");
 
+  // Twitter cards
+  | {% include twitter_cards.html %}

_includes/twitter_cards.html

@@ -0,0 +1,22 @@
+<!-- Twitter cards -->
+<!-- From: https://brianbunke.com/blog/2017/09/06/twitter-cards-on-jekyll/#tweak-to-fit-your-needs -->
+<meta name="twitter:site"    content="@{{ site.twitter_username }}">
+{% if page.author_twitter %}
+<meta name="twitter:creator" content="@{{ page.author_twitter }}">
+{% endif %}
+<meta name="twitter:title"   content="{{ page.title }}">
+
+{% if page.summary %}
+<meta name="twitter:description" content="{{ page.summary }}">
+{% else %}
+<meta name="twitter:description" content="{{ site.description }}">
+{% endif %}
+
+{% if page.image %}
+<meta name="twitter:card"  content="summary_large_image">
+<meta name="twitter:image" content="{{ site.url }}{{ page.image }}">
+{% else %}
+<meta name="twitter:card"  content="summary">
+<meta name="twitter:image" content="{{ site.title_image }}">
+{% endif %}
+<!-- end of Twitter cards -->

_posts/2023-08-30-comparing-time-trackers.md

@@ -1,8 +1,9 @@
 ---
 layout: post
 title: Comparing ActivityWatch with RescueTime, ManicTime, and Apple ScreenTime
-date: 2023-08-30 11:24 +0200
+date: 2023-08-30 15:55 +0200
 author: "Erik Bjäreholt"
+author_twitter: "ErikBjare"
 ---
 
 ## Introduction

_posts/2023-08-30-future-of-time-tracking.md

@@ -1,8 +1,9 @@
 ---
 layout: post
 title: "The Future of Time Tracking: AI, Privacy, and Personalization"
-date: 2023-08-30 11:52 +0200
+date: 2023-08-30 15:57 +0200
 author: "Erik Bjäreholt"
+author_twitter: "ErikBjare"
 ---
 
 ## Introduction