Add option to go to the last used keyboard.

[aguaviva]

Checklist

• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the request will be dismissed otherwise.
• This issue contains only one feature request.
• I have read and understood the contribution guidelines.

Feature description

So I got in my hands an open source keyboard that works very well using voice. Your keyboard is still essential, as sometimes we still need to use it to make minor edits. For this reason, voice keyboards have a button that allows you to go to the last used keyboard, which is usually yours. And it'd be great that your keyboard had a button to go directly to the last used keyboard, which is going to be usually the voice keyboard. This will allow going back and forth between two keyboards and make the experience more smooth.

Thank you for this great app.

Why do you want this feature?

The point is to make transitions between the two keyboards more smoothly, as they both are really needed.

Additional information

No response