TF-2116 Sync all icon and remove icon unused

(cherry picked from commit df2b913e6309b64014e43b50d22d79c12b83ca9e)

lib/features/mailbox_dashboard/presentation/widgets/advanced_search/advanced_search_filter_bottom_sheet.dart

@@ -19,7 +19,7 @@ Future<void> showAdvancedSearchFilterBottomSheet(BuildContext context) async {
     cancelWidget: Padding(
       padding: const EdgeInsets.only(right: 16),
       child: SvgPicture.asset(
-        imagePaths.icCloseAdvancedSearch,
+        imagePaths.icCircleClose,
         colorFilter: AppColor.colorHintSearchBar.asFilter(),
         width: 24,
         height: 24,

lib/features/mailbox_dashboard/presentation/widgets/advanced_search/avatar_suggestion_item_widget.dart

@@ -1,3 +1,4 @@
+import 'package:core/presentation/extensions/string_extension.dart';
 import 'package:flutter/material.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email_address.dart';
 import 'package:model/extensions/email_address_extension.dart';
@@ -25,7 +26,7 @@ class AvatarSuggestionItemWidget extends StatelessWidget {
       ),
       child: Text(
         emailAddress.asString().isNotEmpty
-          ? emailAddress.asString()[0].toUpperCase()
+          ? emailAddress.asString().firstLetterToUpperCase
           : '',
         style: AvatarSuggestionItemStyle.labelTextStyle
       )

lib/features/mailbox_dashboard/presentation/widgets/top_bar_thread_selection.dart

@@ -41,7 +41,7 @@ class TopBarThreadSelection {
     return Row(children: [
       buildIconWeb(
           icon: SvgPicture.asset(
-              imagePaths.icCloseComposer,
+              imagePaths.icClose,
               colorFilter: AppColor.colorTextButton.asFilter(),
               fit: BoxFit.fill),
           tooltip: AppLocalizations.of(context).cancel,