Devlog 33: Pomodoro Segmented Timeline & Layout Integration

Segmented Timeline Layout

• Integrated BaseLayout slots for the new Pomodoro page, separating sidebar settings from the main dashboard.
• Built a visual segmented timeline (.timeline-track) with flex-proportional work/break segments and a dynamic progress pin (.timeline-pin).

Core Logic & State Setup

• Refactored state object fields (workDuration, breakDuration, timeRemaining) to ensure clean state initialization.
• Added timestamp delta checking on startup to preserve accurate remaining time across page reloads or background tabs.