image stuff

_includes/site-feature.html

 {% assign feature_text = page.feature_text %}
 {% assign feature_image = page.feature_image %}
 
+{% if feature_image == nil %}
+  {% assign feature_image = page.image %}
+{% endif %}
+
 {% if page.collectionpage %}
   {% assign collectiondata = site.collections | where: "label", page.collectionpage | first %}
   {% assign feature_text = collectiondata.feature_text %}

_includes/twittercard.html

@@ -8,7 +8,7 @@
 
 {% assign feature_image = page.feature_image %}
 
-{% if !feature_image %}
+{% if feature_image == nil %}
   {% assign feature_image = page.image %}
 {% endif %}
 

_media/2020-12-11-muonpi.md

@@ -3,7 +3,7 @@ layout: [video]
 date:   2020-12-11 20:00:00 +0200
 title:  "MuonPi – Community-basierte verteilte Messung kosmischer Strahlung [Freitalk N8]"
 license:
-feature_image: "freitalk-muonpi-community-basierte-verteilte-messung-kosmischer-strahlung.jpg"
+image: "freitalk-muonpi-community-basierte-verteilte-messung-kosmischer-strahlung.jpg"
 #https://www.uuidgenerator.net/
 uid: 423e6715-f6ad-4332-af7b-07439bbe463d
 yt: "https://www.youtube.com/watch?v=2C2CkgMNC14"

_media/2022-01-15-i-like-p5.md

@@ -3,7 +3,7 @@ layout: [video]
 date:   2023-01-15 19:00:00 +0200
 title:  "Fabi likes P5"
 license: CC-BY-NC-ND-40
-feature_image: "https://video.chaotikum.net/5min/2022-12-29/2022-12-29-5min-i-like-p5.png"
+image: "https://video.chaotikum.net/5min/2022-12-29/2022-12-29-5min-i-like-p5.png"
 #https://www.uuidgenerator.net/
 uid: 67dbaaf2-a392-40da-985f-3f2750326bde
 yt: "https://www.youtube.com/watch?v=6AJwHBxa6jo"

_media/2023-01-07-linux-user-namespaces-und-der-unshare-befehl.md

@@ -3,7 +3,7 @@ layout: [video]
 date:   2023-01-07 19:00:00 +0200
 title:  "NeoRaider über Linux User-Namespaces und den unshare-Befehl"
 license: CC-BY-NC-ND-40
-feature_image: "https://video.chaotikum.net/5min/2022-12-29/2022-12-29-5min-linux-user-namespaces.png"
+image: "https://video.chaotikum.net/5min/2022-12-29/2022-12-29-5min-linux-user-namespaces.png"
 #https://www.uuidgenerator.net/
 uid: 1fc7db56-5c9d-452b-ad51-b43894f77c42
 yt: "https://www.youtube.com/watch?v=zE07kstdvzc"

_media/2023-01-08-nook22.md

@@ -3,7 +3,7 @@ layout: [video]
 date:   2023-01-08 19:00:00 +0200
 title:  "TVLuke über die Zahlen, Daten, Fakten der NooK 2022"
 license: CC-BY-NC-ND-40
-feature_image: "https://video.chaotikum.net/5min/2022-12-29/2022-12-29-5min-nook2022.png"
+image: "https://video.chaotikum.net/5min/2022-12-29/2022-12-29-5min-nook2022.png"
 #https://www.uuidgenerator.net/
 uid: 5c5cc720-c18e-414e-a069-7acaa030c88b
 yt: "https://www.youtube.com/watch?v=KA9-07DPPjg"

_media/2023-01-14-simon-tathams-portable-puzzle-collection-und-loopy.md

@@ -3,7 +3,7 @@ layout: [video]
 date:   2023-01-14 19:00:00 +0200
 title:  "Jakob über Simon Tatham's Portable Puzzle Collection und Loopy"
 license: CC-BY-NC-ND-40
-feature_image: "https://video.chaotikum.net/5min/2022-12-29/2022-12-29-5min-simon-tathams-portable-puzzle-collection-und-loopy.png"
+image: "https://video.chaotikum.net/5min/2022-12-29/2022-12-29-5min-simon-tathams-portable-puzzle-collection-und-loopy.png"
 #https://www.uuidgenerator.net/
 uid: c7f1466b-3445-4d44-bae4-49cb0706e7be
 yt: "https://www.youtube.com/watch?v=IP4MIEZvkmg"