[Keymap] Added Deft layout (#6153)

* Added Deft layout

* Updated style and keymap

* Updated readme, removed files

* Updated readme and keymap

* Updated readme

* Fixed broken keymap

* Fixed a typo in keymap and readme layer images

* Fixed a typo in readme

* Embedded layout image for readme

* Embedded layout image for readme

* Embedded layout image for readme

* Fixed typos in keymap

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Fixed typo in keymap

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Fixed typo in keymap

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Fixed a spelling error in the readme

* Typos and formatting in readme

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
Co-Authored-By: fauxpark <fauxpark@gmail.com>