chore: Make appbar buttons correct size

lib/pages/archive/archive_view.dart

@@ -19,7 +19,7 @@ class ArchiveView extends StatelessWidget {
       future: controller.getArchive(context),
       builder: (BuildContext context, snapshot) => Scaffold(
         appBar: AppBar(
-          leading: const BackButton(),
+          leading: const Center(child: BackButton()),
           title: Text(L10n.of(context)!.archive),
           actions: [
             if (snapshot.data?.isNotEmpty ?? false)

lib/pages/device_settings/device_settings_view.dart

@@ -15,7 +15,7 @@ class DevicesSettingsView extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        leading: const BackButton(),
+        leading: const Center(child: BackButton()),
         title: Text(L10n.of(context)!.devices),
       ),
       body: MaxWidthBody(

lib/pages/key_verification/key_verification_dialog.dart

@@ -344,7 +344,7 @@ class KeyVerificationPageState extends State<KeyVerificationDialog> {
     }
     return Scaffold(
       appBar: AppBar(
-        leading: const CloseButton(),
+        leading: const Center(child: CloseButton()),
         title: title,
       ),
       body: ListView(

lib/pages/new_private_chat/new_private_chat_view.dart

@@ -24,7 +24,7 @@ class NewPrivateChatView extends StatelessWidget {
         min(MediaQuery.of(context).size.width - 16, 256).toDouble();
     return Scaffold(
       appBar: AppBar(
-        leading: const BackButton(),
+        leading: const Center(child: BackButton()),
         title: Text(L10n.of(context)!.newChat),
         backgroundColor: Theme.of(context).scaffoldBackgroundColor,
         actions: [

lib/pages/settings/settings_view.dart

@@ -22,9 +22,11 @@ class SettingsView extends StatelessWidget {
     final showChatBackupBanner = controller.showChatBackupBanner;
     return Scaffold(
       appBar: AppBar(
-        leading: CloseButton(
+        leading: Center(
+          child: CloseButton(
             onPressed: () => context.go('/rooms'),
           ),
+        ),
         title: Text(L10n.of(context)!.settings),
         actions: [
           TextButton.icon(

lib/pages/settings_3pid/settings_3pid_view.dart

@@ -17,7 +17,7 @@ class Settings3PidView extends StatelessWidget {
     controller.request ??= Matrix.of(context).client.getAccount3PIDs();
     return Scaffold(
       appBar: AppBar(
-        leading: const BackButton(),
+        leading: const Center(child: BackButton()),
         title: Text(L10n.of(context)!.passwordRecovery),
         actions: [
           IconButton(

lib/pages/settings_emotes/settings_emotes_view.dart

@@ -23,7 +23,7 @@ class EmotesSettingsView extends StatelessWidget {
     final imageKeys = controller.pack!.images.keys.toList();
     return Scaffold(
       appBar: AppBar(
-        leading: const BackButton(),
+        leading: const Center(child: BackButton()),
         title: Text(L10n.of(context)!.emoteSettings),
         actions: [
           PopupMenuButton<PopupMenuEmojiActions>(

lib/pages/settings_ignore_list/settings_ignore_list_view.dart

@@ -19,7 +19,7 @@ class SettingsIgnoreListView extends StatelessWidget {
     final client = Matrix.of(context).client;
     return Scaffold(
       appBar: AppBar(
-        leading: const BackButton(),
+        leading: const Center(child: BackButton()),
         title: Text(L10n.of(context)!.ignoredUsers),
       ),
       body: MaxWidthBody(

lib/pages/settings_multiple_emotes/settings_multiple_emotes_view.dart

@@ -18,7 +18,7 @@ class MultipleEmotesSettingsView extends StatelessWidget {
     final room = Matrix.of(context).client.getRoomById(controller.roomId!)!;
     return Scaffold(
       appBar: AppBar(
-        leading: const BackButton(),
+        leading: const Center(child: BackButton()),
         title: Text(L10n.of(context)!.emotePacks),
       ),
       body: StreamBuilder(

lib/pages/settings_notifications/settings_notifications_view.dart

@@ -19,7 +19,7 @@ class SettingsNotificationsView extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        leading: const BackButton(),
+        leading: const Center(child: BackButton()),
         title: Text(L10n.of(context)!.notifications),
       ),
       body: MaxWidthBody(

lib/pages/settings_style/settings_style_view.dart

@@ -19,7 +19,7 @@ class SettingsStyleView extends StatelessWidget {
     final wallpaper = Matrix.of(context).wallpaper;
     return Scaffold(
       appBar: AppBar(
-        leading: const BackButton(),
+        leading: const Center(child: BackButton()),
         title: Text(L10n.of(context)!.changeTheme),
       ),
       backgroundColor: Theme.of(context).colorScheme.surface,