[Bug]: Search feature misses important results

The search feature has poor performance. Some important APIs (for example, clientOnly and ParentProps) that should appear in the search results are missing.

Also, there have been requests for the ability to search within normal text and code blocks. This functionality would be helpful for users looking to find examples of specific API usage.

Certain API options, such as deferStream, are also not searchable. This can be addressed by using headings to document API options instead of tables. This is being implemented gradually.

Related issues: (for more context and discussions)

• https://github.com/solidjs/solid-docs/issues/987
• https://github.com/solidjs/solid-docs/issues/109
• https://github.com/solidjs/solid-docs/issues/1364
• https://github.com/solidjs/solid-docs/issues/706 (not directly related to this bug, but about the search engine in general)

Inizia dalla funzionalità di ricerca e consulta le issue correlate 987, 109, 1364 e 706 per il contesto e le discussioni precedenti. Determina quali API mancanti, blocchi di testo e codice e opzioni API rientrano nell'ambito, quindi verifica che il contenuto interessato sia ricercabile senza introdurre regressioni nei risultati esistenti.