feat(dialog): improve layout and styling of detail dialogs

- Add max width and height constraints to dialog content
- Enhance styling for no reason provided text
- Adjust font styles for report details

Author: fulleni

lib/community_management/widgets/app_review_details_dialog.dart

@@ -13,14 +13,23 @@ class AppReviewDetailsDialog extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context);
+    final theme = Theme.of(context);
     final details = appReview.feedbackDetails;
 
     return AlertDialog(
       title: Text(l10n.feedbackDetails),
-      content: SizedBox(
-        width: double.maxFinite,
+      content: ConstrainedBox(
+        constraints: const BoxConstraints(maxWidth: 400, maxHeight: 300),
         child: SingleChildScrollView(
-          child: Text(details ?? l10n.noReasonProvided),
+          child: Text(
+            details ?? l10n.noReasonProvided,
+            style: (details == null)
+                ? theme.textTheme.bodyLarge?.copyWith(
+                    fontStyle: FontStyle.italic,
+                    color: theme.colorScheme.onSurface.withOpacity(0.6),
+                  )
+                : theme.textTheme.bodyLarge,
+          ),
         ),
       ),
       actions: [

lib/community_management/widgets/engagement_details_dialog.dart

@@ -24,8 +24,8 @@ class EngagementDetailsDialog extends StatelessWidget {
 
     return AlertDialog(
       title: Text(l10n.commentDetails),
-      content: SizedBox(
-        width: double.maxFinite,
+      content: ConstrainedBox(
+        constraints: const BoxConstraints(maxWidth: 400, maxHeight: 300),
         child: SingleChildScrollView(
           child: Text(
             engagement.comment?.content ?? l10n.noReasonProvided,

lib/community_management/widgets/report_details_dialog.dart

@@ -23,23 +23,25 @@ class ReportDetailsDialog extends StatelessWidget {
 
     return AlertDialog(
       title: Text(l10n.reportDetails),
-      content: SizedBox(
-        width: double.maxFinite,
+      content: ConstrainedBox(
+        constraints: const BoxConstraints(maxWidth: 400, maxHeight: 300),
         child: SingleChildScrollView(
           child: Column(
             crossAxisAlignment: CrossAxisAlignment.start,
             mainAxisSize: MainAxisSize.min,
             children: [
               Text(
                 '${l10n.reason}: ${report.reason.l10n(context)}',
-                style: theme.textTheme.titleMedium,
+                style: theme.textTheme.titleSmall?.copyWith(
+                  fontWeight: FontWeight.bold,
+                ),
               ),
               if (report.additionalComments != null &&
                   report.additionalComments!.isNotEmpty) ...[
                 const SizedBox(height: AppSpacing.md),
                 Text(
                   l10n.comment,
-                  style: theme.textTheme.titleSmall,
+                  style: theme.textTheme.labelMedium,
                 ),
                 const SizedBox(height: AppSpacing.xs),
                 Text(