Clean up design

lib/views/chat.dart

@@ -347,7 +347,7 @@ class _ChatState extends State<_Chat> {
     return Scaffold(
       extendBodyBehindAppBar: true,
       appBar: AppBar(
-        backgroundColor: Theme.of(context).appBarTheme.color.withOpacity(0.9),
+        backgroundColor: Theme.of(context).appBarTheme.color.withOpacity(0.95),
         leading: selectMode
             ? IconButton(
                 icon: Icon(Icons.close),

lib/views/chat_list.dart

@@ -437,14 +437,16 @@ class _ChatListState extends State<ChatList> {
                                   rooms.length + publicRoomsCount;
                               final directChats =
                                   rooms.where((r) => r.isDirectChat).toList();
-                              directChats.sort((a, b) => Matrix.of(context)
-                                          .client
-                                          .presences[b.directChatMatrixID]
-                                          ?.presence
-                                          ?.statusMsg !=
-                                      null
-                                  ? 1
-                                  : -1);
+                              final presences =
+                                  Matrix.of(context).client.presences;
+                              directChats.sort((a, b) =>
+                                  presences[b.directChatMatrixID]
+                                              ?.presence
+                                              ?.statusMsg !=
+                                          null
+                                      ? 1
+                                      : a.lastEvent.originServerTs.compareTo(
+                                          b.lastEvent.originServerTs));
                               return ListView.separated(
                                   controller: _scrollController,
                                   separatorBuilder:

lib/views/login.dart

@@ -184,7 +184,7 @@ class _LoginState extends State<Login> {
                           L10n.of(context).login.toUpperCase(),
                           style: TextStyle(color: Colors.white, fontSize: 16),
                         ),
-                  onPressed: () => loading ? null : login(context),
+                  onPressed: loading ? null : () => login(context),
                 ),
               ),
             ),

lib/views/sign_up.dart

@@ -155,7 +155,7 @@ class _SignUpState extends State<SignUp> {
                           L10n.of(context).signUp.toUpperCase(),
                           style: TextStyle(color: Colors.white, fontSize: 16),
                         ),
-                  onPressed: () => loading ? null : signUpAction(context),
+                  onPressed: loading ? null : () => signUpAction(context),
                 ),
               ),
             ),

lib/views/sign_up_password.dart

@@ -168,7 +168,7 @@ class _SignUpPasswordState extends State<SignUpPassword> {
                         L10n.of(context).createAccountNow.toUpperCase(),
                         style: TextStyle(color: Colors.white, fontSize: 16),
                       ),
-                onPressed: () => loading ? null : _signUpAction(context),
+                onPressed: loading ? null : () => _signUpAction(context),
               ),
             ),
           ),