fix: actual compact navbar height

Author: ThatOneCalculator

ui/core/src/commonMain/kotlin/com/tunjid/heron/ui/Tokens.kt

@@ -61,7 +61,7 @@ object UiTokens {
 
     fun bottomNavHeight(
         isCompact: Boolean,
-    ): Dp = if (isCompact) 64.dp else 80.dp
+    ): Dp = if (isCompact) 48.dp else 80.dp
 
     @Composable
     fun bottomNavAndInsetPaddingValues(