[Pitch] Enable minimal static content in each per-page HTML file by default

Hello Swift community, Swift DocC 6.3 added an experimental feature to supplement DocC's output with minimal static content in each per-page HTML file. This made the output more easily consumed by tools that don't evaluate JavaScript when visiting a page; for example a search engine crawler/indexer, a large language model fetching a page in response to a prompt, or a custom tool that reads or processes the documentation pages. Evaluating the impact on SEO of these change has been a recurring ...