Implement Notification Settings

- Add UI and logic to inform the user of mismatched notification settings and help them correct it.
- Display a warning when the system notification settings are disabled and a link out to the app settings.
- A toggle to disable notifications for the device
- A screen for editing the group and direct chat notification defaults.
- A toggle for switching on/off atRoom and call notifications.

libraries/pushstore/api/build.gradle.kts

@@ -22,5 +22,6 @@ android {
 }
 
 dependencies {
+    implementation(libs.coroutines.core)
     implementation(projects.libraries.matrix.api)
 }

libraries/pushstore/api/src/main/kotlin/io/element/android/libraries/pushstore/api/UserPushStore.kt

@@ -15,6 +15,8 @@
  */
 
 package io.element.android.libraries.pushstore.api
+import kotlinx.coroutines.flow.Flow
+
 
 /**
  * Store data related to push about a user.
@@ -25,7 +27,7 @@ interface UserPushStore {
     suspend fun getCurrentRegisteredPushKey(): String?
     suspend fun setCurrentRegisteredPushKey(value: String)
 
-    suspend fun areNotificationEnabledForDevice(): Boolean
+    fun getNotificationEnabledForDevice(): Flow<Boolean>
     suspend fun setNotificationEnabledForDevice(enabled: Boolean)
 
     /**