refactor(wm): add window handling sync/async enum

This commit adds a dedicated WindowHandlingBehaviour enum with Sync and
Async variants, and reverts a change to the render fn in window.rs to
use move_window instead of position_window if the
WindowHandlingBehaviour variant is Sync.

schema.json

@@ -217,10 +217,6 @@
         }
       ]
     },
-    "async_window_handling": {
-      "description": "Use asynchronous window handling to avoid blocking the main thread when a window is not responding (default: false)",
-      "type": "boolean"
-    },
     "bar_configurations": {
       "description": "Komorebi status bar configuration files for multiple instances on different monitors",
       "type": "array",
@@ -4619,6 +4615,14 @@
         }
       ]
     },
+    "window_handling_behaviour": {
+      "description": "Which Windows API behaviour to use when manipulating windows (default: Sync)",
+      "type": "string",
+      "enum": [
+        "Sync",
+        "Async"
+      ]
+    },
     "window_hiding_behaviour": {
       "description": "Which Windows signal to use when hiding windows (default: Cloak)",
       "oneOf": [