fix(settings): load LoTW certificate status at startup

The LoTW upload card read uiState.lotwCertificate which was only
populated when the config dialog was opened (LoadLoTWUploadStatus).
On first entry to the settings screen it stayed null, showing
'certificate not imported' even though a certificate was stored.
Load certificate + station once in init so the card is correct
from the first frame.

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/SettingsViewModel.kt

@@ -163,6 +163,10 @@ class SettingsViewModel(
                 _uiState.update { it.copy(logbookRecords = records) }
             }
         }
+        // Load the LoTW upload certificate + station once at startup so the
+        // settings card reflects the real state on first frame (previously it
+        // stayed "not imported" until the config dialog was opened).
+        loadLoTWUploadStatus()
     }