config: make focus-follows-mouse optional

toml-spec/spec/spec.generated.json

@@ -569,6 +569,10 @@
         "idle": {
           "description": "The configuration of the idle timeout.\n\nChanging thise field after compositor startup has no effect. Use `jay idle`\nor a `configure-idle` action to change the idle timeout at runtime.\n\n- Example:\n\n  ```toml\n  idle.minutes = 10\n  ```\n",
           "$ref": "#/$defs/Idle"
+        },
+        "focus-follows-mouse": {
+          "type": "boolean",
+          "description": "Configures whether moving the mouse over a window automatically moves the keyboard\nfocus to that window.\n\nThe default is `true`.\n"
         }
       },
       "required": []