[Keymap] Add @cjuniet's keymap/layout/userspace (#8258)

* Add Colemak layout

* Add status bar for mods & locks with a custom font

* Swap DEL and TAB

* Fix media keys and add QMK Configurator layout

* Add dead grave accent on <leader>e

users/cjuniet/cjuniet.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include "quantum.h"
+
+void render_status_bar(void);