conf: add OG images setup and generate event OG images (graphql#1516)

Author: beerose

.github/workflows/CI.yml

@@ -11,6 +11,12 @@ jobs:
         with:
           node-version: "18.15.0"
 
+      - name: Install system dependencies
+        run: |
+          sudo apt update
+          sudo apt-get update
+          sudo apt-get install libatk-bridge2.0-0
+
       - run: yarn install
 
       - name: Set Sched's API token env

.gitignore

@@ -57,7 +57,11 @@ typings/
 
 # gatsby files
 .cache/
-public
+public/
+
+!static/__og-image/
+static/__og-image/*
+!static/__og-image/*.png
 
 # Mac files
 .DS_Store