Create SyncOrchestrator (#4176)

* Create `SyncOrchestrator` to centralise the sync start/stop flow through the whole app: the decision is based on several inputs: sync state, network available, app in foreground, app in call, app needing to sync an event for a notification.

* Make network monitor return network connectivity status, not internet connectivity

* Don't stop the `SyncService` when network connection is lost, let it fail instead. This prevents an issue when using the offline mode of the SDK, which made the wrong UI states to be shown when the `SyncState` is `Idle` (that is, after the service being manually stopped).

* Rename `NetworkStatus.Online/Offline` to `Connected/Disconnected` so they're not easily mistaken with internet connectivity instead

features/lockscreen/impl/src/main/kotlin/io/element/android/features/lockscreen/impl/DefaultLockScreenService.kt

@@ -94,7 +94,7 @@ class DefaultLockScreenService @Inject constructor(
      */
     private fun observeAppForegroundState() {
         coroutineScope.launch {
-            appForegroundStateService.start()
+            appForegroundStateService.startObservingForeground()
             appForegroundStateService.isInForeground.collect { isInForeground ->
                 if (isInForeground) {
                     lockJob?.cancel()

features/lockscreen/impl/src/main/kotlin/io/element/android/features/lockscreen/impl/unlock/PinUnlockNode.kt

@@ -7,11 +7,10 @@
 
 package io.element.android.features.lockscreen.impl.unlock
 
-import android.app.Activity
+import androidx.activity.compose.LocalActivity
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
 import com.bumble.appyx.core.modality.BuildContext
 import com.bumble.appyx.core.node.Node
 import com.bumble.appyx.core.plugin.Plugin
@@ -42,7 +41,7 @@ class PinUnlockNode @AssistedInject constructor(
     @Composable
     override fun View(modifier: Modifier) {
         val state = presenter.present()
-        val activity = LocalContext.current as Activity
+        val activity = requireNotNull(LocalActivity.current)
         val isDark = ElementTheme.isLightTheme.not()
         LaunchedEffect(state.isUnlocked) {
             if (state.isUnlocked) {