Fix coroutine scope (#4820)

* Inject the session scope instead of the application scope where it's possible.

* Create AppCoroutineScope annotation to let developers explicitly choose the appropriate CoroutineScope when injecting one.

libraries/di/src/main/kotlin/io/element/android/libraries/di/annotations/AppCoroutineScope.kt

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.di.annotations
+
+import javax.inject.Qualifier
+
+/**
+ * Qualifies a [CoroutineScope] object which represents the base coroutine scope to use for the application.
+ */
+@Retention(AnnotationRetention.RUNTIME)
+@MustBeDocumented
+@Qualifier
+annotation class AppCoroutineScope