Add banner for optional migration to simplified sliding sync (#3429)

* Add banner for optional migration to native sliding sync

- Add `MatrixClient.isNativeSlidingSyncSupported()` and `MatrixClient.isUsingNativeSlidingSync` to check whether the home server supports native sliding sync and we're already using it.
- Add `NativeSlidingSyncMigrationBanner` composable to the `RoomList` screen when the home server supports native sliding sync but the current session is not using it.
- Add an extra logout successful action to the logout flow, create `EnableNativeSlidingSyncUseCase` so it can be used there.

* Update screenshots

* Make sure the sliding sync migration banner has lower priority than the encryption setup ones

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Co-authored-by: ElementBot <benoitm+elementbot@element.io>

features/roomlist/impl/build.gradle.kts

@@ -49,6 +49,7 @@ dependencies {
     implementation(projects.libraries.push.api)
     implementation(projects.features.invite.api)
     implementation(projects.features.networkmonitor.api)
+    implementation(projects.features.logout.api)
     implementation(projects.features.leaveroom.api)
     implementation(projects.services.analytics.api)
     implementation(libs.androidx.datastore.preferences)
@@ -75,6 +76,7 @@ dependencies {
     testImplementation(projects.services.analytics.test)
     testImplementation(projects.services.toolbox.test)
     testImplementation(projects.features.networkmonitor.test)
+    testImplementation(projects.features.logout.test)
     testImplementation(projects.tests.testutils)
     testImplementation(projects.features.leaveroom.test)
 }