Enable thinking for Google Vertex Anthropic models

Improvements

• CoreMake question validation more lax to avoid tool call failures
• TerminalPrevent crash when theme search returns no results@ishaksebsib
• DesktopVisual cleanup in app
• DesktopScroll to comment on click in app
• DesktopFixed crash when no default model is set
• DesktopPerformance improvements in the app package
• DesktopClean up comment component usage in app