neon, neon_files, neon_news, settings: use specific WIdgets instead of containers

packages/neon/neon/lib/src/widgets/text_settings_tile.dart

@@ -14,7 +14,7 @@ class NeonTextSettingsTile extends SettingsTile {
   final TextStyle? style;
 
   @override
-  Widget build(final BuildContext context) => Container(
+  Widget build(final BuildContext context) => Padding(
         padding: const EdgeInsets.symmetric(
           horizontal: 16,
         ),

packages/neon/neon_files/lib/dialogs/choose_folder.dart

@@ -58,7 +58,7 @@ class FilesChooseFolderDialog extends StatelessWidget {
                           ],
                         ),
                       )
-                    : Container(),
+                    : const SizedBox(),
               ),
             ],
           ),

packages/neon/neon_files/lib/pages/details.dart

@@ -35,9 +35,9 @@ class FilesDetailsPage extends StatelessWidget {
               ),
               DataTable(
                 headingRowHeight: 0,
-                columns: [
-                  DataColumn(label: Container()),
-                  DataColumn(label: Container()),
+                columns: const [
+                  DataColumn(label: SizedBox()),
+                  DataColumn(label: SizedBox()),
                 ],
                 rows: [
                   for (final entry in {

packages/neon/neon_files/lib/widgets/browser_view.dart

@@ -43,7 +43,7 @@ class _FilesBrowserViewState extends State<FilesBrowserView> {
               builder: (final context, final downloadTasksSnapshot) => !pathSnapshot.hasData ||
                       !uploadTasksSnapshot.hasData ||
                       !downloadTasksSnapshot.hasData
-                  ? Container()
+                  ? const SizedBox()
                   : BackButtonListener(
                       onBackButtonPressed: () async {
                         final path = pathSnapshot.requireData;
@@ -72,7 +72,7 @@ class _FilesBrowserViewState extends State<FilesBrowserView> {
                                 stream: uploadTask.progress,
                                 builder: (final context, final uploadTaskProgressSnapshot) =>
                                     !uploadTaskProgressSnapshot.hasData
-                                        ? Container()
+                                        ? const SizedBox()
                                         : _buildFile(
                                             context: context,
                                             details: FileDetails(

packages/neon/neon_news/lib/widgets/feeds_view.dart

@@ -51,8 +51,7 @@ class NewsFeedsView extends StatelessWidget {
               ? Theme.of(context).textTheme.titleMedium!.copyWith(color: Theme.of(context).disabledColor)
               : null,
         ),
-        subtitle:
-            feed.unreadCount! > 0 ? Text(AppLocalizations.of(context).articlesUnread(feed.unreadCount!)) : Container(),
+        subtitle: feed.unreadCount! > 0 ? Text(AppLocalizations.of(context).articlesUnread(feed.unreadCount!)) : null,
         leading: NewsFeedIcon(
           feed: feed,
           borderRadius: const BorderRadius.all(Radius.circular(8)),

packages/neon/neon_news/lib/widgets/folders_view.dart

@@ -55,7 +55,7 @@ class NewsFoldersView extends StatelessWidget {
           ? Text(
               AppLocalizations.of(context).articlesUnread(unreadCount),
             )
-          : Container(),
+          : null,
       leading: SizedBox.square(
         dimension: 48,
         child: Stack(

packages/settings/lib/src/widgets/checkbox_settings_tile.dart

@@ -12,7 +12,7 @@ class CheckBoxSettingsTile extends InputSettingsTile<ToggleOption> {
         builder: (final context, final value) => StreamBuilder<bool>(
           stream: option.enabled,
           builder: (final context, final enabledSnapshot) => !enabledSnapshot.hasData
-              ? Container()
+              ? const SizedBox()
               : CheckboxListTile(
                   title: Text(option.label(context)),
                   value: value,

packages/settings/lib/src/widgets/dropdown_button_settings_tile.dart

@@ -34,7 +34,7 @@ class DropdownButtonSettingsTile<T> extends InputSettingsTile<SelectOption<T>> {
                       : Theme.of(context).textTheme.titleMedium!.copyWith(color: Theme.of(context).disabledColor),
                 ),
                 trailing: valuesSnapshot.hasData
-                    ? Container(
+                    ? ConstrainedBox(
                         constraints: BoxConstraints(
                           maxWidth: constraints.maxWidth * 0.5,
                         ),