Package Manager Manager 0.29.0

• Add New & Trending packages from pkg.so to Discover, with package installation actions and a link to the full list.
• Add a temporary Search Results sidebar section combining catalog and locally installed packages. Clearing search restores the previous section.
• Rank exact search matches first and label installed packages in results.
• Preserve search focus when switching between Discover and search results.
• Show loading failures and retry actions for Discover blog posts and trending packages.
• Fix release builds rejecting valid catalog metadata containing null values.