Update thumbnail images to the correct size

_publications/2022-03-21-spn-intro-be-everywhere.md

@@ -8,7 +8,7 @@ title: "SPN Intro #2: Be Everywhere"
 date: 2022-03-21
 video_source: https://assets.safing.io/video/tutorials/spn-intro-1-be-everywhere.mp4
 youtube_hash: p3tjNmFKrDk
-custom_thumbnail_name: spn-2-multi-identity
+custom_thumbnail_name: spn-2-multi-identity-big
 ---
 
 {% include video_wrapper.html %}

_publications/2022-03-28-portmaster-intro-getting-started.md

@@ -8,7 +8,7 @@ title: "Portmaster Intro #1: Install on Windows"
 date: 2022-03-28
 video_source: https://assets.safing.io/video/tutorials/portmaster-1-getting-started.mp4
 youtube_hash: xHAESh1zKAc
-custom_thumbnail_name: portmaster-1-getting-started
+custom_thumbnail_name: portmaster-1-getting-started-big
 ---
 
 {% include video_wrapper.html %}

_publications/2022-04-04-portmaster-intro-filter-lists.md

@@ -8,7 +8,7 @@ title: "Portmaster Intro #2: Block Trackers"
 date: 2022-04-04
 video_source: https://assets.safing.io/video/tutorials/portmaster-2-filter-lists.mp4
 youtube_hash: PeTuVgK5z9o
-custom_thumbnail_name: portmaster-2-filter-lists
+custom_thumbnail_name: portmaster-2-filter-lists-big
 ---
 
 {% include video_wrapper.html %}