design: Slightly adjust chat design

lib/config/themes.dart

@@ -90,9 +90,6 @@ abstract class FluffyThemes {
           filled: true,
         ),
         appBarTheme: AppBarTheme(
-          surfaceTintColor:
-              brightness == Brightness.light ? Colors.white : Colors.black,
-          shadowColor: Colors.black.withAlpha(64),
           systemOverlayStyle: SystemUiOverlayStyle(
             statusBarColor: Colors.transparent,
             statusBarIconBrightness: brightness.reversed,

lib/pages/chat/chat_view.dart

@@ -168,7 +168,6 @@ class ChatView extends StatelessWidget {
             builder: (BuildContext context, snapshot) {
               return Scaffold(
                 appBar: AppBar(
-                  elevation: 3,
                   actionsIconTheme: IconThemeData(
                     color: controller.selectedEvents.isEmpty
                         ? null
@@ -215,15 +214,6 @@ class ChatView extends StatelessWidget {
                           height: double.infinity,
                           fit: BoxFit.cover,
                           filterQuality: FilterQuality.medium,
-                        )
-                      else
-                        Container(
-                          decoration: BoxDecoration(
-                            gradient: FluffyThemes.backgroundGradient(
-                              context,
-                              64,
-                            ),
-                          ),
                         ),
                       SafeArea(
                         child: Column(

lib/pages/chat/events/message.dart

@@ -86,7 +86,7 @@ class Message extends StatelessWidget {
         nextEvent!.senderId == event.senderId &&
         !displayTime;
     final textColor = ownMessage
-        ? Theme.of(context).colorScheme.onPrimary
+        ? Theme.of(context).colorScheme.onPrimaryContainer
         : Theme.of(context).colorScheme.onBackground;
     final rowMainAxisAlignment =
         ownMessage ? MainAxisAlignment.end : MainAxisAlignment.start;
@@ -116,7 +116,7 @@ class Message extends StatelessWidget {
     if (ownMessage) {
       color = displayEvent.status.isError
           ? Colors.redAccent
-          : Theme.of(context).colorScheme.primary;
+          : Theme.of(context).colorScheme.primaryContainer;
     }
 
     final rowChildren = <Widget>[
@@ -187,9 +187,15 @@ class Message extends StatelessWidget {
               padding: const EdgeInsets.only(left: 8),
               child: Material(
                 color: noBubble ? Colors.transparent : color,
-                elevation: event.type == EventTypes.Sticker ? 0 : 4,
-                shadowColor: Colors.black.withAlpha(64),
+                shape: RoundedRectangleBorder(
                   borderRadius: borderRadius,
+                  side: noBubble
+                      ? BorderSide.none
+                      : BorderSide(
+                          color: Theme.of(context).dividerTheme.color ??
+                              Theme.of(context).dividerColor,
+                        ),
+                ),
                 clipBehavior: Clip.antiAlias,
                 child: InkWell(
                   onHover: (b) => useMouse = true,
@@ -205,7 +211,10 @@ class Message extends StatelessWidget {
                     ),
                     padding: noBubble || noPadding
                         ? EdgeInsets.zero
-                        : EdgeInsets.all(16 * AppConfig.bubbleSizeFactor),
+                        : EdgeInsets.symmetric(
+                            horizontal: 16 * AppConfig.bubbleSizeFactor,
+                            vertical: 8 * AppConfig.bubbleSizeFactor,
+                          ),
                     constraints: const BoxConstraints(
                       maxWidth: FluffyThemes.columnWidth * 1.5,
                     ),

lib/pages/chat_list/chat_list_header.dart

@@ -43,9 +43,7 @@ class ChatListHeader extends StatelessWidget implements PreferredSizeWidget {
                   controller.selectedRoomIds.length.toString(),
                   key: const ValueKey(SelectMode.select),
                 )
-              : SizedBox(
-                  height: 44,
-                  child: TextField(
+              : TextField(
                   controller: controller.searchController,
                   textInputAction: TextInputAction.search,
                   onChanged: controller.onSearchEnter,
@@ -102,7 +100,6 @@ class ChatListHeader extends StatelessWidget implements PreferredSizeWidget {
                           ),
                   ),
                 ),
-                ),
       actions: selectMode == SelectMode.share
           ? [
               Padding(

lib/pages/settings_style/settings_style_view.dart

@@ -146,17 +146,22 @@ class SettingsStyleView extends StatelessWidget {
               alignment: Alignment.centerLeft,
               padding: const EdgeInsets.symmetric(horizontal: 12),
               child: Material(
-                color: Theme.of(context).colorScheme.primary,
-                elevation: 6,
-                shadowColor:
-                    Theme.of(context).secondaryHeaderColor.withAlpha(100),
+                color: Theme.of(context).colorScheme.primaryContainer,
+                shape: RoundedRectangleBorder(
                   borderRadius: BorderRadius.circular(AppConfig.borderRadius),
+                  side: BorderSide(
+                    color: Theme.of(context).dividerColor,
+                  ),
+                ),
                 child: Padding(
-                  padding: EdgeInsets.all(16 * AppConfig.bubbleSizeFactor),
+                  padding: EdgeInsets.symmetric(
+                    horizontal: 16 * AppConfig.bubbleSizeFactor,
+                    vertical: 8 * AppConfig.bubbleSizeFactor,
+                  ),
                   child: Text(
                     'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor',
                     style: TextStyle(
-                      color: Theme.of(context).colorScheme.onPrimary,
+                      color: Theme.of(context).colorScheme.onPrimaryContainer,
                       fontSize:
                           AppConfig.messageFontSize * AppConfig.fontSizeFactor,
                     ),