Window occlusion checks on MacOS (#6135)

* wip: window occlusion checks on MacOS

* wip: occlusion works

* occlusion notification

* fix ci

* fix

* wire in hiding into macos occlusion

* remove debug logs

* fix

* clean up

Cargo.toml

@@ -64,6 +64,8 @@ clickhouse = "0.14.0"
 color-eyre = "0.6.5"
 color-thief = "0.2.2"
 const_format = "0.2.34"
+core-foundation = "0.10.1"
+core-graphics = "0.24.0"
 daedalus = { path = "packages/daedalus" }
 darling = { version = "0.23" }
 dashmap = "6.1.0"
@@ -123,6 +125,7 @@ murmur2 = "0.1.0"
 native-dialog = "0.9.2"
 notify = { version = "8.2.0", default-features = false }
 notify-debouncer-mini = { version = "0.7.0", default-features = false }
+objc2-app-kit = { version = "0.3.2", default-features = false }
 p256 = "0.13.2"
 parking_lot = "0.12.5"
 paste = "1.0.15"