feat: Jina Search & Jina Reader CSS selectors

[rennokki]

Description

Jina Search from Jina is a free tool to search on the web and receive 5 top results. This is helpful for grounding in the latest knowledge from the web.

• Added Jina Search tool support
• Added X-Target-Selector and X-Wait-For-Selector support in Jina Reader

Fixes # (issue)

Type of Change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)
• Improvement, including but not limited to code refactoring, performance optimization, and UI/UX improvement

How Has This Been Tested?

Create a new flow and seek to use the tool for searching.

Suggested Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
• optional I have made corresponding changes to the documentation
• optional I have added tests that prove my fix is effective or that my feature works
• optional New and existing unit tests pass locally with my changes

[Yeuoly]

LGTM