FIX: allow webp format on themes by default as well (#12994)

FIX: allow webp format on themes by default as well (#12994)

webp was already supported and authorized for user uploads, allow themes to use webp as well.

diff --git a/config/site_settings.yml b/config/site_settings.yml
index fdbd133..80658f6 100644
--- a/config/site_settings.yml
+++ b/config/site_settings.yml
@@ -1233,7 +1233,7 @@ files:
     default: 50000
     max: 1024000
   theme_authorized_extensions:
-    default: "jpg|jpeg|png|woff|woff2|svg|eot|ttf|otf|gif|js"
+    default: "jpg|jpeg|png|woff|woff2|svg|eot|ttf|otf|gif|webp|js"
     type: list
     list_type: compact
   authorized_extensions:

GitHub sha: 7f90d0a7

This commit appears in #12994 which was approved by CvX. It was merged by featheredtoast.