Fixes DM chatroom edit button

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/ChatroomScreen.kt

@@ -45,7 +45,6 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.EditNote
 import androidx.compose.material.icons.filled.Send
 import androidx.compose.material3.Button
-import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Divider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
@@ -106,7 +105,6 @@ import com.vitorpamplona.amethyst.ui.note.UserCompose
 import com.vitorpamplona.amethyst.ui.note.UsernameDisplay
 import com.vitorpamplona.amethyst.ui.screen.NostrChatroomFeedViewModel
 import com.vitorpamplona.amethyst.ui.screen.RefreshingChatroomFeedView
-import com.vitorpamplona.amethyst.ui.theme.ButtonBorder
 import com.vitorpamplona.amethyst.ui.theme.DividerThickness
 import com.vitorpamplona.amethyst.ui.theme.EditFieldBorder
 import com.vitorpamplona.amethyst.ui.theme.EditFieldModifier
@@ -115,6 +113,7 @@ import com.vitorpamplona.amethyst.ui.theme.Size20Modifier
 import com.vitorpamplona.amethyst.ui.theme.Size30Modifier
 import com.vitorpamplona.amethyst.ui.theme.Size34dp
 import com.vitorpamplona.amethyst.ui.theme.StdPadding
+import com.vitorpamplona.amethyst.ui.theme.ZeroPadding
 import com.vitorpamplona.amethyst.ui.theme.placeholderText
 import com.vitorpamplona.quartz.events.ChatMessageEvent
 import com.vitorpamplona.quartz.events.ChatroomKey
@@ -661,11 +660,7 @@ private fun EditRoomSubjectButton(
     Button(
         modifier = Modifier.padding(horizontal = 3.dp).width(50.dp),
         onClick = { wantsToPost = true },
-        shape = ButtonBorder,
+        contentPadding = ZeroPadding,
-        colors =
-            ButtonDefaults.buttonColors(
-                containerColor = MaterialTheme.colorScheme.primary,
-            ),
     ) {
         Icon(
             tint = Color.White,