fix: add missing imports for lifecycleScope and launch

- MainActivity.kt: add missing 'androidx.lifecycle.lifecycleScope' import
- LockScreen.kt: add missing 'kotlinx.coroutines.launch' import

Both were causing compilation failures in the CI build.

Author: MaheshTechnicals

app/src/main/java/com/junkfood/seal/MainActivity.kt

@@ -28,6 +28,7 @@ import com.junkfood.seal.util.PreferenceUtil.getBoolean
 import com.junkfood.seal.util.PreferenceUtil.updateBoolean
 import com.junkfood.seal.util.matchUrlFromSharedText
 import com.junkfood.seal.util.setLanguage
+import androidx.lifecycle.lifecycleScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import org.koin.androidx.viewmodel.ext.android.viewModel

app/src/main/java/com/junkfood/seal/ui/page/security/LockScreen.kt

@@ -29,6 +29,7 @@ import com.junkfood.seal.ui.theme.SealTheme
 import com.junkfood.seal.util.AuthenticationManager
 import com.junkfood.seal.util.makeToast
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
 
 @Composable
 fun LockScreen(