Updated UI text to English and improved currency formatting

The UI strings in `ExpenseDetailScreen`, `DashboardScreen`, and `AccountSelectionScreen` have been translated from German to English.

Additionally, currency display logic has been updated to use `String.format("%.2f€", ...)` for consistent two-decimal formatting across the `ExpenseDetailScreen` and `DashboardScreen`.

app/src/main/java/de/miaurizius/shap_planner/ui/screens/AccountSelectionScreen.kt

@@ -43,7 +43,7 @@ fun AccountSelectionScreen(accounts: List<Account>, onAccountClick: (Account) ->
         verticalArrangement = Arrangement.spacedBy(12.dp)
     ) {
         item {
-            Text("Wähle einen Account", style = MaterialTheme.typography.headlineSmall)
+            Text("Choose an account", style = MaterialTheme.typography.headlineSmall)
         }
 
         items(accounts) { account ->
@@ -64,7 +64,7 @@ fun AccountSelectionScreen(accounts: List<Account>, onAccountClick: (Account) ->
                 onClick = onAddAccountClick,
                 modifier = Modifier.fillMaxWidth()
             ) {
-                Text("Anderen Account hinzufügen")
+                Text("Add account")
             }
         }
     }

app/src/main/java/de/miaurizius/shap_planner/ui/screens/DashboardScreen.kt

@@ -1,5 +1,6 @@
 package de.miaurizius.shap_planner.ui.screens
 
+import android.annotation.SuppressLint
 import androidx.activity.compose.BackHandler
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
@@ -83,29 +84,29 @@ fun DashboardScreen(
                 ) {
                     Column {
                         Text(
-                            text = "Hallo, ${account.name}!",
+                            text = "Hello, ${account.name}!",
                             style = MaterialTheme.typography.headlineMedium
                         )
                         Text(
-                            text = "WG: ${account.wgName}",
+                            text = "Household: ${account.wgName}",
                             style = MaterialTheme.typography.bodyLarge,
                             color = Color.Gray
                         )
                     }
                     Button(onClick = onBack) {
-                        Text("Wechseln")
+                        Text("Switch")
                     }
                 }
 
                 Spacer(modifier = Modifier.height(5.dp))
 
                 Button(onClick = onDelete) {
-                    Text("Löschen")
+                    Text("Delete")
                 }
 
                 Spacer(modifier = Modifier.height(10.dp))
 
-                Text("WG-Kosten", style = MaterialTheme.typography.titleLarge)
+                Text("Costs", style = MaterialTheme.typography.titleLarge)
                 Spacer(modifier = Modifier.height(8.dp))
 
                 if(expenseResource is Resource.Loading && expenseResource.data?.isEmpty() == true) {
@@ -113,7 +114,7 @@ fun DashboardScreen(
                 }
 
                 if(expenseResource is Resource.Error) {
-                    Text("Fehler: ${expenseResource.message}", color = Color.Red)
+                    Text("Error: ${expenseResource.message}", color = Color.Red)
                 }
 
                 LazyColumn(
@@ -142,6 +143,7 @@ fun DashboardScreen(
     }
 }
 
+@SuppressLint("DefaultLocale")
 @Composable
 fun ExpenseItem(expense: Expense, onClick: () -> Unit) {
     Surface(modifier = Modifier
@@ -151,7 +153,7 @@ fun ExpenseItem(expense: Expense, onClick: () -> Unit) {
         color = MaterialTheme.colorScheme.surface) {
         Row(modifier = Modifier.padding(16.dp), horizontalArrangement = Arrangement.SpaceBetween) {
             Text(text = expense.title, style = MaterialTheme.typography.bodyLarge)
-            Text(text = expense.amount.toString()+"€", style = MaterialTheme.typography.bodyLarge, fontWeight = FontWeight.Bold)
+            Text(text = String.format("%.2f€", expense.amount / 100.0), style = MaterialTheme.typography.bodyLarge, fontWeight = FontWeight.Bold)
         }
     }
 }

app/src/main/java/de/miaurizius/shap_planner/ui/screens/ExpenseDetailScreen.kt

@@ -36,6 +36,7 @@ import de.miaurizius.shap_planner.entities.Account
 import de.miaurizius.shap_planner.entities.Expense
 import de.miaurizius.shap_planner.viewmodels.ExpenseDetailViewModel
 
+@SuppressLint("DefaultLocale")
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun ExpenseDetailScreen(
@@ -55,14 +56,14 @@ fun ExpenseDetailScreen(
             TopAppBar(
                 title = { Text(expense.title) },
                 navigationIcon = { IconButton(onClick = onBack) {
-                    Icon(Icons.AutoMirrored.Filled.ArrowBack, "Zurück")
+                    Icon(Icons.AutoMirrored.Filled.ArrowBack, "Back")
                 } }
             )
         }
     ) { padding ->
         Column(modifier = Modifier.padding(padding).padding(16.dp)) {
             Text(
-                text = "${expense.amount / 100.0}€",
+                text = String.format("%.2f€", expense.amount / 100.0),
                 style = MaterialTheme.typography.displayMedium,
                 fontWeight = FontWeight.Bold,
                 color = MaterialTheme.colorScheme.primary
@@ -73,12 +74,12 @@ fun ExpenseDetailScreen(
             HorizontalDivider(Modifier, DividerDefaults.Thickness, DividerDefaults.color)
             Spacer(modifier = Modifier.height(16.dp))
 
-            Text("Kostenaufteilung", style = MaterialTheme.typography.titleLarge)
+            Text("Cost Allocation", style = MaterialTheme.typography.titleLarge)
             Spacer(modifier = Modifier.height(8.dp))
 
             LazyColumn(verticalArrangement = Arrangement.spacedBy(8.dp)) {
                 items(shares) { item ->
-                    ShareItem(item.user?.name ?: "Unbekannter Nutzer", item.share.share_cents)
+                    ShareItem(item.user?.name ?: "Unknown User", item.share.share_cents)
                 }
             }
         }