Search UI

[haohangyan]

This PR contains the frontend code for the search website, along with minor modifications to the backend queries. The search website serves as a tool for retrieving statements from the graph database. Users can query statements based on various attributes, including agents, agent roles, relationship types, and paper context (Mesh terms).

Key Features:

• Grounding Button with Gilda Integration: Enables users to ground both agent and Mesh terms using the Gilda grounding API.
• Dynamic Dropdowns for Grounding Results: Selectable dropdowns display the grounding results for both Mesh text and agent text.
• Multi-Relationship Type Search: Supports selectable multi-relationship dropdown lists for filtering statements by multiple relationship types.
• Hover-Text Descriptions: Added hover-on text descriptions to labels, providing users with contextual guidance.
• Clickable Examples: Provides interactive examples to guide users on how to construct queries effectively.