What's Changed

markup/highlight: Escape lang in default code block rendering ce1a7e0 @bep
parser/pageparser: Preserve non-ASCII whitespace after e.g. summary divider 70a9068 @bep
resources: Support babel/postcss config variants 9d66d51 @jmooring #15039 #15040 #15043
hugolib: Fix page/section name collision regression f013346 @jmooring #15046