Fix null being on chat messages author temporarily

lib/login.dart

@@ -81,7 +81,7 @@ class _LoginPageState extends State<LoginPage> {
             title: const Text("Login"),
           ),
           body: Padding(
-            padding: const EdgeInsets.all(16.0),
+            padding: const EdgeInsets.all(8.0),
             child: Center(
               child: Column(
                 mainAxisAlignment: MainAxisAlignment.center,

lib/room.dart

@@ -66,10 +66,9 @@ class _RoomPageState extends State<RoomPage> {
             itemCount: messages?.length,
             reverse: true,
             itemBuilder: (context, index) => ListTile(
-                  title: Text(messages![index]
-                      .senderFromMemoryOrFallback
-                      .displayName
-                      .toString()),
+                  title: Text(
+                      messages![index].senderFromMemoryOrFallback.displayName ??
+                          ""),
                   subtitle: Text(messages![index].body),
                   leading:
                       messages![index].senderFromMemoryOrFallback.avatarUrl !=
@@ -86,6 +85,7 @@ class _RoomPageState extends State<RoomPage> {
       ),
       TextFormField(
         controller: chatController,
+        textCapitalization: TextCapitalization.sentences,
         textInputAction: TextInputAction.send,
         decoration: const InputDecoration(hintText: 'Message'),
         onFieldSubmitted: (value) async {
@@ -109,7 +109,7 @@ class _RoomPageState extends State<RoomPage> {
         ],
       ),
       body: Padding(
-          padding: const EdgeInsets.all(16.0),
+          padding: const EdgeInsets.all(8.0),
           child: Column(
             children: getChildren(),
           )),

lib/rooms.dart

@@ -78,7 +78,7 @@ class _RoomsPageState extends State<RoomsPage> {
         ],
       ),
       body: Padding(
-        padding: const EdgeInsets.all(16.0),
+        padding: const EdgeInsets.all(8.0),
         child: Center(child: Consumer<ZenithClientProvider>(
           builder: (context, provider, child) {
             provider.client.onRoomState.stream.listen((event) {
@@ -87,7 +87,7 @@ class _RoomsPageState extends State<RoomsPage> {
               });
             });
 
-            if (loadingRooms)
+            if (provider.client.rooms.isEmpty)
               return const CircularProgressIndicator();
             else
               return ListView.builder(