fix: show stopped services in list + loading bar on action

- API: --all flag in systemctl list-units to show inactive services
- API: removed head -50 limit
- Android: LinearProgressIndicator while service action is running

android/app/src/main/java/com/devlab/app/ui/servers/ServerDetailScreen.kt

@@ -372,6 +372,13 @@ private fun ServicesTab(state: ServerDetailUiState, viewModel: ServerDetailViewM
         )
         Spacer(modifier = Modifier.height(8.dp))
 
+        if (state.serviceActionRunning != null) {
+            LinearProgressIndicator(
+                modifier = Modifier.fillMaxWidth().padding(bottom = 8.dp),
+                color = MaterialTheme.colorScheme.primary
+            )
+        }
+
         if (state.serviceActionResult != null) {
             Card(
                 colors = CardDefaults.cardColors(