Improve SuperTextField demo app

[matthew-carroll]

We added an entrypoint specifically to demo SuperTextField in this PR: #1596

That work is a start, but we can create a more compelling demo app for SuperTextField.

Implement the following:

• Toggleable light mode and dark mode, which is respected by the SuperTextFields
• Start with a single text field of a single line. Make it possible to add more SuperTextFields in a vertical column.
• Make it possible to select a SuperTextField and alter various characteristics in a settings pane, e.g., line count, border color, etc.
• Adapts the overall layout for mobile vs desktop

[foxtrotravi]

Hi @matthew-carroll I would like to contribute to this. I will create a PR for this soon.

[foxtrotravi]

@matthew-carroll

I am a little confused about this point:

• Start with a single text field of a single line. Make it possible to add more SuperTextFields in a vertical column.

Please correct me if I am wrong. Should I add a + button to add multiple SuperTextFields in the Column vertically?

[foxtrotravi]

We added an entrypoint specifically to demo SuperTextField in this PR: #1596

That work is a start, but we can create a more compelling demo app for SuperTextField.

Implement the following:

• Toggleable light mode and dark mode, which is respected by the SuperTextFields
• Start with a single text field of a single line. Make it possible to add more SuperTextFields in a vertical column.
• Make it possible to select a SuperTextField and alter various characteristics in a settings pane, e.g., line count, border color, etc.
• Adapts the overall layout for mobile vs desktop

I have pushed 3/4 tasks mentioned in the issue above. Please let me know about the following query & I will add that in the PR.

• Start with a single text field of a single line. Make it possible to add more SuperTextFields in a vertical column.

cc - @matthew-carroll

[matthew-carroll]

Hi @foxtrotravi thanks for your desire to contribute. This ticket is meant for me - it's a note to myself. I see you've done some good work assembling text field variations. I appreciate that effort. But it's not quite what I had in mind. If you really want to work on this, I can put together a few design mockups. Let me know if that's something you want to do.

In general, you should wait for a ticket to be assigned before working on it. We have all sorts of things going on behind the scenes that might interfere with your ability to implement a ticket.

I'm not sure we have any other tickets right now that have a clear goal for new project developers.

[foxtrotravi]

Hi @matthew-carroll Yeah, I totally understand that I should have waited for the ticket to be assigned.
I really want to contribute to this project. That's why I started working on it. It would be awesome if you could provide the mockup.