refactor: replace raw spacer

Author: jvsena42

app/src/main/java/to/bitkit/ui/screens/widgets/headlines/HeadlinesEditScreen.kt

@@ -4,9 +4,7 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.material3.HorizontalDivider
@@ -27,9 +25,11 @@ import to.bitkit.models.widget.ArticleModel
 import to.bitkit.models.widget.HeadlinePreferences
 import to.bitkit.ui.components.BodySSB
 import to.bitkit.ui.components.Caption13Up
+import to.bitkit.ui.components.FillHeight
 import to.bitkit.ui.components.PrimaryButton
 import to.bitkit.ui.components.SecondaryButton
 import to.bitkit.ui.components.Title
+import to.bitkit.ui.components.VerticalSpacer
 import to.bitkit.ui.scaffold.AppTopBar
 import to.bitkit.ui.scaffold.ScreenColumn
 import to.bitkit.ui.theme.AppThemeSurface
@@ -89,7 +89,7 @@ fun HeadlinesEditContent(
                 .padding(horizontal = 16.dp)
                 .testTag("WidgetEditScrollView")
         ) {
-            Spacer(modifier = Modifier.height(16.dp))
+            VerticalSpacer(16.dp)
 
             Caption13Up(
                 text = stringResource(R.string.widgets__widget__content),
@@ -204,7 +204,7 @@ fun HeadlinesEditContent(
                 modifier = Modifier.testTag("time_divider")
             )
 
-            Spacer(modifier = Modifier.weight(1f))
+            FillHeight()
 
             Row(
                 modifier = Modifier