Add context switch tracker

[RMCampos]

Brief description

It's not rare having to switch context between tasks. As software developers, we often have to stop to see something else, attend a quick meeting, or investigate a bug in production.

Would be perfect to have a way of tracking these contect switches during the day.

User Story

As a user, I want to be able to track context switch on my daily-basis work.

Acceptance Criteria

• Add "Switch context" button
• Perhaps, add a new tag or small description for the new task
• Tests passing
• PR merged

Additional context

• None;