Remove unused imports and update type references for improved code readability and maintenance.

frontend/features/turnier-feature/src/commonMain/kotlin/at/mocode/turnier/feature/data/remote/dto/NennungDto.kt

@@ -2,7 +2,6 @@ package at.mocode.turnier.feature.data.remote.dto
 
 import kotlinx.serialization.Serializable
 import kotlin.uuid.ExperimentalUuidApi
-import kotlin.uuid.Uuid
 
 @OptIn(ExperimentalUuidApi::class)
 @Serializable

frontend/features/turnier-feature/src/jvmMain/kotlin/at/mocode/turnier/feature/presentation/SeriesScreen.kt

@@ -1,9 +1,8 @@
 package at.mocode.turnier.feature.presentation
 
-import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.*
 import androidx.compose.material3.*
-import androidx.compose.runtime.*
+import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color

frontend/features/turnier-feature/src/jvmMain/kotlin/at/mocode/turnier/feature/presentation/TurnierDetailScreen.kt

@@ -11,7 +11,6 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import org.koin.compose.koinInject
-import org.koin.compose.viewmodel.koinViewModel
 import org.koin.core.parameter.parametersOf
 
 /**