Revamp #76
Description
Convert everything into a tick system.
All actions should be built on top of a tick system.
A tick is the smallest operation that the typewriter operates on, it encompasses the state of the typewriter at a point in time.
Actions are a collection of ticks in a certain order. The flow of actions is a stream of ticks, just like events on a timeline. The typewriter navigates back and forth in said timeline with a global cursor.
The timeline is both the history and queue of actions. Pausing execution simply stops the cursor from navigating through ticks and resuming resumes the execution from where it left off.
