Add background to sleep timer element

Author: esensar

app/src/main/kotlin/com/simplemobiletools/flashlight/views/SleepTimer.kt

@@ -3,6 +3,7 @@ package com.simplemobiletools.flashlight.views
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
+import androidx.compose.foundation.background
 import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.padding
@@ -33,7 +34,7 @@ internal fun SleepTimer(
                 width = 1.dp,
                 color = divider_grey,
                 shape = RectangleShape
-            )
+            ).background(SimpleTheme.colorScheme.surface)
     ) {
         Text(
             modifier = Modifier