fix search apify docs tool page content extraction

[MQ37]

For reason the does not extract a content snippet correctly for these pages ans returns just the "Copy for LLM":

- Document URL: https://docs.apify.com/api/v2/store-get
  Content: Copy for LLM

- Document URL: https://docs.apify.com/api/v2/acts-post
  Content: Copy for LLM

- Document URL: https://docs.apify.com/api/v2/acts-get
  Content: Copy for LLM"

[MQ37]

the issue is related to algolia index - context https://apify.slack.com/archives/C0L33UM7Z/p1763991226644539