Automatically try reloading failed images on network changes (#3170)

* Add the networkMonitor to the NSE and delete the old MockMediaLoader

* Generate a MediaLoaderMock through AutoMockable and use it in the MediaProviderTests

* Implement an ImageProvider mechanism that automatically tries reloading images when connectivity is established again and use it for LoadableImages

* Merge the ImageProvider protocol back into the MediaProvider

* Address PR review comments

* Provide a default sdk client request configuration

* Address tasks not automatically cancelling themselves when views get deallocated

ElementX/Sources/Screens/UserProfileScreen/View/UserProfileScreen.swift

@@ -72,7 +72,7 @@ struct UserProfileScreen: View {
         if let userProfile = context.viewState.userProfile {
             AvatarHeaderView(user: userProfile,
                              avatarSize: .user(on: .memberDetails),
-                             imageProvider: context.imageProvider) {
+                             mediaProvider: context.mediaProvider) {
                 context.send(viewAction: .displayAvatar)
             } footer: {
                 otherUserFooter
@@ -80,7 +80,7 @@ struct UserProfileScreen: View {
         } else {
             AvatarHeaderView(user: UserProfileProxy(userID: context.viewState.userID),
                              avatarSize: .user(on: .memberDetails),
-                             imageProvider: context.imageProvider,
+                             mediaProvider: context.mediaProvider,
                              footer: { })
         }
     }