Add custom frame styles

[willyogo]

Currently the UI we're using for Frames has very basic styles for buttons and inputs that can't be edited by the user.

As a user, I want the frame inputs and buttons to have modern styling and to be able to edit the font and button style from the Frame Fidget settings.

Example of modern style to user for default:

https://docs.base.org/tutorials/add-frames-to-basename/

Let's match this style (no border on buttons for example) for frames both in the frame fidget and well as feed, and for frames in the frame fidget, give users the ability to update the Font, Font Color, and Button Color. The one difference is that while base has fully rounded corners for their buttons and inputs, our corner roundness should match the roundness we have on the Cast button.

AC:

1. Frame UI styles are refreshed and match base
2. Users can update the Font, Font Color, and Button Color for a given Frame in the Frame Fidget settings
3. User can select Theme Title Font or Theme Body Font from the Font dropdown menu to inherit global theme settings

[r4topunk]

Taking a look on this 👀