Crypto API investigation (#117)

News source and monitoring update (#113)

feat: UI improvements and error suppression - Enhanced dashboard and market pages with improved header buttons, logo, and currency symbol display - Stopped animated ticker - Removed pie chart legends - Added error suppressor for external service errors (SSE, Permissions-Policy warnings) - Improved header button prominence and icon appearance - Enhanced logo with glow effects and better design - Fixed currency symbol visibility in market tables