Create tools (function calls) plugin finder/browser

This issue should go under ai_agents. Hence I have created one and linked the issue.

Work done:

• Correctly process the tools selected in the modal.
• Rebuild the detailed tool usage section when tools are selected.

Remaining work

• Update the save method in ai agent form to handle the data from the modal form on click apply.

To continue with the remaining work, I am a bit confused with the implementation of how to take the values in the modal form on apply click to the ai agent form and save them in the ai agent form?