Remember flows (#4533)

* Add Konsist test to ensure that the result of a function returning a flow is remembered.

* Remember flows before they are collected by state.

* Fix compilation issue

* Make isOnline a val.

* Make selectedUsers() a val.

* Make flow() a val.

* Make getUserConsent(), didAskUserConsent() and getAnalyticsId() some val.

* Remove Timeline.paginationStatus() and replace by direct access to the underlined flow.

* Simplify test

* userConsentFlow must be initialized before because it's used in observeUserConsent

* Fix test compilation

features/migration/impl/src/main/kotlin/io/element/android/features/migration/impl/MigrationPresenter.kt

@@ -33,7 +33,9 @@ class MigrationPresenter @Inject constructor(
 
     @Composable
     override fun present(): MigrationState {
-        val migrationStoreVersion by migrationStore.applicationMigrationVersion().collectAsState(initial = null)
+        val migrationStoreVersion by remember {
+            migrationStore.applicationMigrationVersion()
+        }.collectAsState(initial = null)
         var migrationAction: AsyncData<Unit> by remember { mutableStateOf(AsyncData.Uninitialized) }
 
         // Uncomment this block to run the migration everytime