Adapt keybinding to new sway config checker

defaults/main/keybindings.yml

@@ -1,16 +1,4 @@
 ---
-sway_keys_variables:
- - name: '$left'
-   value: 'h'
- - name: '$down'
-   value: 'j'
- - name: '$up'
-   value: 'k'
- - name: '$right'
-   value: 'l'
- - name: '$mod'
-   value: 'Mod4'
-
 sway_keybindings:
   - mode: 'normal'
     bindings:

defaults/main/variables.yml

@@ -4,3 +4,13 @@ sway_variables:
    value: 'foot'
  - name: '$menu' 
    value: 'dmenu_path | dmenu | xargs swaymsg exec --'
+ - name: '$left'
+   value: 'h'
+ - name: '$down'
+   value: 'j'
+ - name: '$up'
+   value: 'k'
+ - name: '$right'
+   value: 'l'
+ - name: '$mod'
+   value: 'Mod4'