Previously, the processor that excludes certain cli commands
(`filterHiddenCommand`) was being run after the `createSitemap`
processor, resulting in those commands to be present in `sitemap.xml`,
while the actual pages where missing. This also resulted in 404s, when
search engine crawlers tried to index the missing URLs.
This commit fixes it by ensuring that the `filterHiddenCommand`
processor is run before the `createSitemap` processor.
PR Close#30395