fix: blank space when graph has not been interacted with

Author: tien

app/src/main/java/com/tien/piholeconnect/ui/screen/home/HomeScreen.kt

@@ -239,17 +239,15 @@ fun HomeScreen(viewModel: HomeViewModel = viewModel()) {
                                 style = MaterialTheme.typography.h6
                             )
                             Column(Modifier.alpha(if (permittedQueriesCount != null && blockedQueriesCount != null) 1f else 0f)) {
-                                if (formattedStartTime != null && formattedEndTime != null) {
-                                    Text(
-                                        String.format(
-                                            stringResource(
-                                                R.string.home_queries_chart_time_info,
-                                                formattedStartTime,
-                                                formattedEndTime
-                                            )
-                                        ), style = MaterialTheme.typography.caption
-                                    )
-                                }
+                                Text(
+                                    String.format(
+                                        stringResource(
+                                            R.string.home_queries_chart_time_info,
+                                            formattedStartTime ?: "",
+                                            formattedEndTime ?: ""
+                                        )
+                                    ), style = MaterialTheme.typography.caption
+                                )
                                 Text(
                                     "%s: %d".format(
                                         stringResource(R.string.home_queries_chart_permitted_queries_label),