Web: Implement MonitorHandle (#3801)

Requires getting permission from the user to get "detailed" support.
Also enables users to go fullscreen on specific monitors.
Exposes platform-specific orientation API.

Most functionality depends on browser support, currently only Chromium.

Cargo.toml

@@ -305,7 +305,12 @@ web_sys = { package = "web-sys", version = "0.3.64", features = [
     'MessagePort',
     'Navigator',
     'Node',
+    'OrientationType',
+    'OrientationLockType',
     'PageTransitionEvent',
+    'Permissions',
+    'PermissionState',
+    'PermissionStatus',
     'PointerEvent',
     'PremultiplyAlpha',
     'ResizeObserver',
@@ -313,6 +318,8 @@ web_sys = { package = "web-sys", version = "0.3.64", features = [
     'ResizeObserverEntry',
     'ResizeObserverOptions',
     'ResizeObserverSize',
+    'Screen',
+    'ScreenOrientation',
     'VisibilityState',
     'Window',
     'WheelEvent',