Forward availability notification from WebInspector daemon

https://bugs.webkit.org/show_bug.cgi?id=273586
rdar://126946795

Reviewed by Ben Nham.

Forward availability notification from WebInspector daemon from the UI process to the WebContent processes.
The notification handler in the WebContent process will not be called unless we forward the notification.

* Source/WebKit/Resources/SandboxProfiles/ios/com.apple.WebKit.WebContent.sb.in:
* Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm:
(WebKit::WebProcessPool::registerNotificationObservers):
* Source/WebKit/WebProcess/com.apple.WebProcess.sb.in:

Canonical link: https://commits.webkit.org/278235@main

Source/WebKit/Resources/SandboxProfiles/ios/com.apple.WebKit.WebContent.sb.in

@@ -1478,6 +1478,7 @@
         "com.apple.powerlog.state_changed"
         "com.apple.system.lowpowermode"
         "com.apple.system.timezone"
+        "com.apple.webinspectord.available"
         "com.apple.zoomwindow"
         "org.WebKit.lowMemory"
         "org.WebKit.lowMemory.begin"

Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm

@@ -716,6 +716,7 @@ static void logProcessPoolState(const WebProcessPool& pool)
         "com.apple.WebKit.showMemoryCache"_s,
         "com.apple.WebKit.showPaintOrderTree"_s,
         "com.apple.WebKit.showRenderTree"_s,
+        "com.apple.webinspectord.available"_s,
         "com.apple.language.changed"_s,
         "com.apple.mediaaccessibility.captionAppearanceSettingsChanged"_s,
         "com.apple.powerlog.state_changed"_s,

Source/WebKit/WebProcess/com.apple.WebProcess.sb.in

@@ -2056,6 +2056,7 @@
         "org.WebKit.memoryWarning"
         "org.WebKit.memoryWarning.begin"
         "org.WebKit.memoryWarning.end"
+        "com.apple.webinspectord.available"
 #endif
         "com.apple.accessibility.AirPodsSpatialAudioLockToDeviceChanged"
         "com.apple.webinspectord.availability_check"))