Update Red Banner Copy on GovTool

[bosko-m]

Update the content of the red banner displayed on GovTool to reflect the latest funding status and link to relevant documentation.

Updated Copy

Title:
⚠️ Funding for GovTool is at risk

Description:
GovTool was not included in the current Cardano budget.
Without new support, active development and maintenance will end in June 2025.
Learn what this means and what’s next: The future of GovTool

Acceptance Criteria

• Red banner title is updated to: Funding for GovTool is at risk
• Description text is updated as specified
• Link labeled The future of GovTool directs users to the correct GitBook page
• Display and link are functional across all screen sizes and views