v2024.08.10

Upstream changes

• Merge branch 'feature/isset-to-null-coalescing-op' into 'master'
• Replace basic 'isset()' cases with the null coalescing operator.
• Merge branch 'master' of gitlab.tt-rss.org:tt-rss/tt-rss
• Merge branch 'weblate-integration' into 'master'
• Translated using Weblate (Spanish)
• set proper stages for phpdoc jobs
• copy docs to subpath
• set phpdoc image name
• add phpdoc dockerfile
• exp - use phpdoc container