fix(ui): make footer buttons expand downwards (#5226)

Author: zt64

feature/settings/src/commonMain/kotlin/org/meshtastic/feature/settings/radio/component/RadioConfigScreenList.kt

@@ -25,6 +25,7 @@ import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.LazyListScope
@@ -85,6 +86,7 @@ fun <T : Message<T, *>> RadioConfigScreenList(
 
                 item {
                     AnimatedVisibility(
+                        modifier = Modifier.fillMaxWidth(),
                         visible = showFooterButtons,
                         enter = fadeIn() + expandIn(),
                         exit = fadeOut() + shrinkOut(),