style: fix ktlint violations (unused imports + line length)

app/src/main/java/com/m57/hermescontrol/ui/system/SystemScreen.kt

@@ -5,15 +5,12 @@ import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
-import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.items
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Menu
 import androidx.compose.material.icons.filled.Refresh
@@ -164,7 +161,12 @@ fun SystemScreen(
                                         text = "Diagnostics Status: ${if (report.ok) "Running" else "Failed"}",
                                         style = MaterialTheme.typography.bodyMedium,
                                         fontWeight = FontWeight.SemiBold,
-                                        color = if (report.ok) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.error,
+                                        color =
+                                            if (report.ok) {
+                                                MaterialTheme.colorScheme.primary
+                                            } else {
+                                                MaterialTheme.colorScheme.error
+                                            },
                                     )
                                     report.pid?.let { pid ->
                                         Spacer(modifier = Modifier.height(4.dp))