nit: extract app name into a constant value; remove unused onBackPressed callbacks

examples/llama.android/app/src/main/java/com/example/llama/revamp/KleidiLlamaApplication.kt

@@ -3,5 +3,7 @@ package com.example.llama.revamp
 import android.app.Application
 import dagger.hilt.android.HiltAndroidApp
 
+const val APP_NAME = "Kleidi LLama"
+
 @HiltAndroidApp
 class KleidiLlamaApplication : Application()

examples/llama.android/app/src/main/java/com/example/llama/revamp/ui/components/NavigationDrawer.kt

@@ -32,6 +32,7 @@ import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.LocalConfiguration
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
+import com.example.llama.revamp.APP_NAME
 import com.example.llama.revamp.navigation.NavigationActions
 import kotlinx.coroutines.launch
 
@@ -103,7 +104,7 @@ private fun DrawerContent(
             horizontalAlignment = Alignment.CenterHorizontally
         ) {
             Text(
-                text = "Kleidi LLaMA",
+                text = APP_NAME,
                 style = MaterialTheme.typography.titleLarge,
                 textAlign = TextAlign.Center
             )

examples/llama.android/app/src/main/java/com/example/llama/revamp/ui/screens/ConversationScreen.kt

@@ -404,7 +404,7 @@ private fun ConversationInputField(
                 modifier = Modifier
                     .weight(1f)
                     .padding(end = 8.dp),
-                placeholder = { Text("Message Kleidi LLaMA...") },
+                placeholder = { Text("Message $APP_NAME...") },
                 maxLines = 5,
                 enabled = isEnabled,
                 colors = TextFieldDefaults.colors(

examples/llama.android/app/src/main/java/com/example/llama/revamp/ui/screens/ModelsManagementScreen.kt

@@ -47,7 +47,6 @@ import com.example.llama.revamp.viewmodel.ModelsManagementViewModel
  */
 @Composable
 fun ModelsManagementScreen(
-    onBackPressed: () -> Unit,
     onScaffoldEvent: (ScaffoldEvent) -> Unit,
     viewModel: ModelsManagementViewModel,
 ) {

examples/llama.android/app/src/main/java/com/example/llama/revamp/ui/screens/SettingsGeneralScreen.kt

@@ -21,6 +21,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
+import com.example.llama.revamp.APP_NAME
 import com.example.llama.revamp.viewmodel.PerformanceViewModel
 
 /**
@@ -29,7 +30,6 @@ import com.example.llama.revamp.viewmodel.PerformanceViewModel
 @Composable
 fun SettingsGeneralScreen(
     performanceViewModel: PerformanceViewModel = hiltViewModel(),
-    onBackPressed: () -> Unit,
 ) {
     // Collect state from ViewModel
     val isMonitoringEnabled by performanceViewModel.isMonitoringEnabled.collectAsState()
@@ -76,7 +76,7 @@ fun SettingsGeneralScreen(
                     modifier = Modifier.padding(16.dp)
                 ) {
                     Text(
-                        text = "Kleidi LLaMA",
+                        text = APP_NAME,
                         style = MaterialTheme.typography.titleLarge
                     )