Instead of needing to run the commands manually in main.go, we can implement the `Run(...) error` method to satisfy the command interface so that `kong` can Run our commands for us.
This commit uses the embedded style struct for styling in all components. The most notable example is `gum write` where there are many styles that are used and composed for each component of the command.
Spin provides a shell script interface for the spinner bubble. It is
useful for displaying that some task is running in the background while
consuming it's output so that it is not shown to the user.
For example, let's do a long running task:
```
sleep 5
```
We can simply prepend a spinner to this task to show it to the user,
while performing the task / command in the background.
```
gum spin -t "Taking a nap..." -- sleep 5
```
The spinner will automatically exit when the task is complete.
