fix: remove bottom nav padding on server detail screen

Scaffold's innerPadding reserved NavigationBar height even when the
bar was hidden (on detail screens). Content like the services list
had extra empty space at the bottom.

Fix: build custom PaddingValues that only includes bottom padding
when inLoggedInArea is true.

android/app/src/main/java/com/devlab/app/MainActivity.kt

@@ -20,6 +20,9 @@ import androidx.compose.material.icons.filled.*
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.ui.platform.LocalLayoutDirection
+import androidx.compose.ui.unit.LayoutDirection
 import androidx.compose.ui.unit.dp
 import androidx.core.app.ActivityCompat
 import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
@@ -228,7 +231,14 @@ fun AppRoot() {
             startDestination = if (isLoggedIn) Screen.Dashboard.route else Screen.Login.route,
             modifier = Modifier
                 .fillMaxSize()
-                .padding(innerPadding),
+                .padding(
+                    PaddingValues(
+                        start = 0.dp,
+                        top = innerPadding.calculateTopPadding(),
+                        end = 0.dp,
+                        bottom = if (inLoggedInArea) innerPadding.calculateBottomPadding() else 0.dp
+                    )
+                ),
             enterTransition = { slideInHorizontally(initialOffsetX = { it / 4 }) + fadeIn(animationSpec = tween(300)) },
             exitTransition = { fadeOut(animationSpec = tween(200)) },
             popEnterTransition = { fadeIn(animationSpec = tween(200)) },