Refactor widgets, add bloc dep

Clean up widget code and update a dependency:

- Remove redundant const qualifiers and tidy widget children in several skeleton/header widgets for consistent style.
- Add super.key to TaxFormsProgressOverview, TaxFormStatusBadge, and AccountCard constructors.
- Simplify AccountCard by consolidating its constructor into a single const declaration.
- Minor fixes: adjust Image.onError parameter, reformat CircleAvatar/Icon construction in edit_profile_page.
- Add bloc ^8.1.4 to staff/authentication pubspec.

These changes are stylistic and aim to improve consistency and constructor patterns across the codebase.

apps/mobile/packages/features/client/home/lib/src/presentation/widgets/client_home_header_skeleton.dart

@@ -12,22 +12,22 @@ class ClientHomeHeaderSkeleton extends StatelessWidget {
   Widget build(BuildContext context) {
     return const UiShimmer(
       child: Padding(
-        padding: const EdgeInsets.fromLTRB(
+        padding: EdgeInsets.fromLTRB(
           UiConstants.space4,
           UiConstants.space4,
           UiConstants.space4,
           UiConstants.space3,
         ),
-        child: const Row(
+        child: Row(
           mainAxisAlignment: MainAxisAlignment.spaceBetween,
-          children: const <Widget>[
-            const Row(
-              children: const <Widget>[
-                const UiShimmerCircle(size: UiConstants.space10),
-                const SizedBox(width: UiConstants.space3),
-                const Column(
+          children: <Widget>[
+            Row(
+              children: <Widget>[
+                UiShimmerCircle(size: UiConstants.space10),
+                SizedBox(width: UiConstants.space3),
+                Column(
                   crossAxisAlignment: CrossAxisAlignment.start,
-                  children: const <Widget>[
+                  children: <Widget>[
                     UiShimmerLine(width: 80, height: 12),
                     SizedBox(height: UiConstants.space1),
                     UiShimmerLine(width: 120, height: 16),
@@ -35,9 +35,9 @@ class ClientHomeHeaderSkeleton extends StatelessWidget {
                 ),
               ],
             ),
-            const Row(
+            Row(
               spacing: UiConstants.space2,
-              children: const <Widget>[
+              children: <Widget>[
                 UiShimmerBox(width: 36, height: 36),
                 UiShimmerBox(width: 36, height: 36),
               ],

apps/mobile/packages/features/client/home/lib/src/presentation/widgets/client_home_page_skeleton/reorder_section_skeleton.dart

@@ -12,7 +12,7 @@ class ReorderSectionSkeleton extends StatelessWidget {
   Widget build(BuildContext context) {
     return const Column(
       crossAxisAlignment: CrossAxisAlignment.start,
-      children: const <Widget>[
+      children: <Widget>[
         UiShimmerSectionHeader(),
         SizedBox(height: UiConstants.space2),
         SizedBox(