alter text alignment and icon sizes treewide

lib/main.dart

@@ -141,6 +141,8 @@ class const App({super.key}) extends StatelessWidget {
             ),
         home: child,
       ),
+      child: DefaultTextHeightBehavior(
+        textHeightBehavior: .new(leadingDistribution: .even),
         child: Scaffold(
           body: Consumer(
             builder: (_, ref, _) => switch (ref.watch(
@@ -195,5 +197,6 @@ class const App({super.key}) extends StatelessWidget {
           ),
         ),
       ),
+    ),
   );
 }

lib/widgets/event_preview.dart

@@ -13,9 +13,9 @@ class const EventPreview(final Event event, {super.key})
       padding: .symmetric(vertical: 4),
       child: Row(
         mainAxisSize: .min,
-        spacing: 8,
+        spacing: 10,
         children: [
-          if (event.content is MessageContent) MessageAvatar(event, height: 28),
+          if (event.content is MessageContent) MessageAvatar(event, height: 40),
 
           Flexible(
             child: Column(

lib/widgets/member_list.dart

@@ -123,15 +123,18 @@ class const MemberList(final String roomId, {super.key})
                                             members[index].stateKey!,
                                             overflow: .ellipsis,
                                           ),
-                                          leading: AvatarOrHash(
+                                          leading: Transform.translate(
+                                            offset: .new(0, 2),
+                                            child: AvatarOrHash(
                                               avatarUrl,
-                                            dimension: 36,
+                                              dimension: 40,
                                               displayName ??
                                                   members[index]
                                                       .stateKey!
                                                       .localpart,
                                             ),
                                           ),
+                                        ),
                                       _ => throw Exception(
                                         "Member content was not MembershipContent",
                                       ),

lib/widgets/renderers/event.dart

@@ -209,7 +209,7 @@ class const EventRenderer(
     return Column(
       crossAxisAlignment: .start,
       children: [
-        if (child != null) ...[
+        if (child != null)
           if (textOnly)
             child
           else ...[
@@ -299,8 +299,8 @@ class const EventRenderer(
                   ),
                 ),
             ].map((child) => Padding(padding: .only(left: 4), child: child)),
-          ],
-        ] else if (textOnly)
+          ]
+        else if (textOnly)
           Text("Unknown event type", style: errorStyle),
       ],
     );

lib/widgets/renderers/message.dart

@@ -148,7 +148,7 @@ class const MessageRenderer(
     return Row(
       crossAxisAlignment: .start,
       mainAxisSize: .min,
-      spacing: 8,
+      spacing: 6,
       children: [
         if (!textOnly)
           if (isGrouped)
@@ -157,7 +157,7 @@ class const MessageRenderer(
             MessageAvatar(event, height: 40),
         Flexible(
           child: Column(
-            spacing: 4,
+            spacing: 2,
             crossAxisAlignment: .start,
             children: [
               if (!isGrouped && !textOnly)