Timer for when a tab being focused in HH:MM format. Resets after 24 hours.

• Timer starts automatically when a tab is opened
• When the page losses focus (switching to a different tab), it would pause the timer
• When the page gains focus (switching to a tab having a timer), it would always r###me the timer
• Clicking the timer would toggle between pause and r###me
• Hovering the timer would show the time when it has started