improve dateFormat a bit, and fix some buttons

flutter/lib/pages/channel_list/channel_list_item.dart

@@ -62,7 +62,7 @@ class _ChannelListItemState extends State<ChannelListItem> {
 
   @override
   Widget build(BuildContext context) {
-    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateFormat();
+    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateOnlyFormat();
 
     return Card.filled(
       margin: EdgeInsets.fromLTRB(0, 4, 0, 4),

flutter/lib/pages/client_list/client_list_item.dart

@@ -19,7 +19,7 @@ class ClientListItem extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateFormat();
+    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateOnlyFormat();
 
     return Card.filled(
       margin: EdgeInsets.fromLTRB(0, 4, 0, 4),

flutter/lib/pages/keytoken_list/keytoken_list_item.dart

@@ -24,7 +24,7 @@ class KeyTokenListItem extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateFormat();
+    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateOnlyFormat();
 
     return Card.filled(
       margin: EdgeInsets.fromLTRB(0, 4, 0, 4),

flutter/lib/pages/message_view/message_view.dart

@@ -202,14 +202,14 @@ class _MessageViewPageState extends State<MessageViewPage> {
             icon: FontAwesomeIcons.solidUser,
             title: 'User',
             values: [user?.userID ?? message.senderUserID, user?.username ?? ''],
-            mainAction: () => FilteredMessageViewPage(title: user?.username ?? message.senderUserID, filter: MessageFilter(senderUserID: [message.senderUserID])),
+            mainAction: () => Navi.push(context, () => FilteredMessageViewPage(title: user?.username ?? message.senderUserID, filter: MessageFilter(senderUserID: [message.senderUserID]))),
           ),
           UI.metaCard(
             context: context,
             icon: FontAwesomeIcons.solidBolt,
             title: 'Priority',
             values: [_prettyPrintPriority(message.priority)],
-            mainAction: () => FilteredMessageViewPage(title: "Priority ${message.priority}", filter: MessageFilter(priority: [message.priority])),
+            mainAction: () => Navi.push(context, () => FilteredMessageViewPage(title: "Priority ${message.priority}", filter: MessageFilter(priority: [message.priority]))),
           ),
           if (message.senderUserID == userAccUserID) UI.button(text: "Delete Message", onPressed: () {/*TODO*/}, color: Colors.red[900]),
         ],

flutter/lib/pages/sender_list/sender_list_item.dart

@@ -22,7 +22,7 @@ class SenderListItem extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateFormat();
+    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateOnlyFormat();
 
     return Card.filled(
       margin: EdgeInsets.fromLTRB(0, 4, 0, 4),

flutter/lib/pages/subscription_view/subscription_view.dart

@@ -160,7 +160,7 @@ class _SubscriptionViewPageState extends State<SubscriptionViewPage> {
   }
 
   Widget _buildOwnedSubscriptionView(BuildContext context, Subscription subscription) {
-    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateFormat();
+    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateOnlyFormat();
 
     return SingleChildScrollView(
       child: Padding(
@@ -193,7 +193,7 @@ class _SubscriptionViewPageState extends State<SubscriptionViewPage> {
   }
 
   Widget _buildIncomingSubscriptionView(BuildContext context, Subscription subscription) {
-    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateFormat();
+    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateOnlyFormat();
 
     return SingleChildScrollView(
       child: Padding(
@@ -228,7 +228,7 @@ class _SubscriptionViewPageState extends State<SubscriptionViewPage> {
   }
 
   Widget _buildOutgoingSubscriptionView(BuildContext context, Subscription subscription) {
-    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateFormat();
+    final dateFormat = context.select<AppSettings, AppSettingsDateFormat>((v) => v.dateFormat).dateOnlyFormat();
 
     return SingleChildScrollView(
       child: Padding(

flutter/lib/state/app_settings.dart

@@ -30,6 +30,17 @@ enum AppSettingsDateFormat {
     }
   }
 
+  DateFormat dateOnlyFormat() {
+    switch (this) {
+      case AppSettingsDateFormat.ISO:
+        return DateFormat('yyyy-MM-dd');
+      case AppSettingsDateFormat.German:
+        return DateFormat('dd.MM.yyyy');
+      case AppSettingsDateFormat.US:
+        return DateFormat('MM/dd/yyyy');
+    }
+  }
+
   static AppSettingsDateFormat? parse(String? string) {
     if (string == null) return null;
     return values.firstWhere((e) => e.key == string, orElse: null);