feat(config): add floating ws layer behaviour opt

This commit adds a new option to the WorkspaceConfig object,
floating_layer_behaviour, which allows the user to either set
FloatingLayerBehaviour::Tile or FloatingLayerBehaviour::Float. Although

I prefer Float as a default, there was a good enough argument to make
Tile the default based on the fact that the Floating layer is
automatically engaged based on the focused window, and previously when
the focused window was a floating window, new windows would be tiled
unless they matched floating rules.

schema.bar.json

@@ -1,7 +1,7 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
   "title": "KomobarConfig",
-  "description": "The `komorebi.bar.json` configuration file reference for `v0.1.35`",
+  "description": "The `komorebi.bar.json` configuration file reference for `v0.1.36`",
   "type": "object",
   "required": [
     "left_widgets",