Enforce mandatory session verification only for new logins (#2811)

* Enforce mandatory session verification only for new logins

- Creates `AppMigration` base interface as a way to isolate migration logic, app migrations must implement this interface.
- Creates `AppMigration01` with the existing logs removal migration and `AppMigration02` with the logic to allow existing sessions to skip verification.
- Add `DefaultSessionPreferencesStoreFactory.remove(sessionId)` to allow a ephemeral session store access to exist outside the `SessionScope` for this new migration.

* Fix tests

* Add more tests.

This also includes creating several abstractions.

* Review changes.

- Make `orderedMigrations` a class property, `migrations` just a constructor parameter to avoid incorrect usages.
- Create `lastMigration` property too, use it instead of `MIGRATION_VERSION`.

libraries/preferences/api/src/main/kotlin/io/element/android/features/preferences/api/store/SessionPreferencesStoreFactory.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2024 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.preferences.api.store
+
+import io.element.android.libraries.matrix.api.core.SessionId
+import kotlinx.coroutines.CoroutineScope
+
+interface SessionPreferencesStoreFactory {
+    fun get(sessionId: SessionId, sessionCoroutineScope: CoroutineScope): SessionPreferencesStore
+    fun remove(sessionId: SessionId)
+}