feat: promise-based type() API that now supports treating text as command

[mkrl]

Description

Convert existing type() API to be promise-based.
Instead of callback you can now pass a new argument isCommand (acts in the same way as in print, useful for terminal demos where you would create an effect of someone else typing the command).

The function now returns a promise resolving to true or false depending on user input interruption.

You might want to convert existing usages of type with callbacks in a similar matter:

Before

        terminal.type('text', 120, () => {
          if (!terminal.isProcessRunning) {
            terminal.print('Finished typing')
          }
        })

After

        terminal.type('text', 120)
          .then((finished) => {
            if (finished) {
              terminal.print('Finished typing')
            }
          })

or

        const finished = await terminal.type('text', 120)
        if (finished) {
            terminal.print('Finished typing')
        }

Pre-review checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation (if required)
• My contribution is awesome

[github-actions]

🎉 This PR is included in version 1.6.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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