Enable asset optimization (#2061)

Brewfile.netlify

@@ -0,0 +1 @@
+brew "pngquant"

config/mkdocs.common.yml

@@ -66,11 +66,11 @@ plugins:
   macros: {}
   meta: {}
   git-committers:
-    enabled: !ENV [PRODUCTION, false]
+    enabled: !ENV [NETLIFY, false]
     repository: privacyguides/privacyguides.org
     branch: main
   git-revision-date-localized:
-    enabled: !ENV [PRODUCTION, false]
+    enabled: !ENV [NETLIFY, false]
     exclude:
       - index.md
     fallback_to_build_date: true
@@ -78,6 +78,8 @@ plugins:
     external_assets_exclude:
       - cdn.jsdelivr.net/npm/mathjax@3/*
       - api.privacyguides.net/*
+  optimize:
+    enabled: !ENV [NETLIFY, false]
 
 markdown_extensions:
   admonition: {}

netlify.toml

@@ -2,9 +2,6 @@
     publish = "site/"
     command = "mkdocs build --config-file config/mkdocs.en.yml && mkdocs build --config-file config/mkdocs.he.yml && mkdocs build --config-file config/mkdocs.fr.yml && mkdocs build --config-file config/mkdocs.nl.yml && mv _redirects site/"
 
-[context.production.environment]
-    PRODUCTION = "true"
-
 [[headers]]
   for = "/*"
   [headers.values]