Update Red Banner Copy and Behavior on GovTool

[bosko-m]

Description

Revise the red banner copy and visual behavior to reflect updated messaging about GovTool's funding needs and improve user experience.

Updated Copy

Title:
⚠️ GovTool needs your support

Body:
GovTool wasn’t included in the current Cardano budget.
A 100k ada maintenance grant will sustain essential infrastructure and bug fixes through 2025 — but future development depends on renewed community backing.
Find out what this means and how you can help: The future of GovTool

Acceptance Criteria

• Banner title is updated to: ⚠️ GovTool needs your support
• Body text is updated per content above
• Link is functional and leads to the correct GitBook page
• Banner background when open is black or dark grey (hex color: #212A3D)
• Banner background when collapsed remains red
• Banner is open by default
• State (open/closed) is preserved across all pages and navigation sessions

[m-i-k-e]

#212A3D is the background color