style(search): Ensure initial selection on search, make backgroudn selection highlighting edge2edge

AI-assistant: Claude Code v2.1.138 (Claude Sonnet 4.6)
Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

Author: AndyScherzinger

app/src/main/java/com/nextcloud/talk/chat/viewmodels/ChatViewModel.kt

@@ -584,6 +584,9 @@ class ChatViewModel @AssistedInject constructor(
                         error = false
                     )
                 }
+                if (navigableResults.isNotEmpty()) {
+                    jumpToSearchSelection()
+                }
             } catch (_: CancellationException) {
                 // Ignore cancellation; request was superseded by a newer one.
             } catch (@Suppress("Detekt.TooGenericExceptionCaught") throwable: Throwable) {

app/src/main/java/com/nextcloud/talk/ui/chat/ChatMessageView.kt

@@ -14,6 +14,8 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.combinedClickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.ripple
 import androidx.compose.runtime.Composable
@@ -23,6 +25,7 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
 import com.nextcloud.talk.R
 import com.nextcloud.talk.chat.ui.model.ChatMessageUi
 import com.nextcloud.talk.chat.ui.model.MessageTypeContent
@@ -110,6 +113,7 @@ fun ChatMessageView(
         ) {
             Box(
                 modifier = Modifier
+                    .fillMaxWidth()
                     .combinedClickable(
                         interactionSource = interactionSource,
                         indication = ripple(),
@@ -124,6 +128,7 @@ fun ChatMessageView(
                         onLongClick = { callbacks.onLongClick?.invoke(message.id) }
                     )
             ) {
+                Box(modifier = Modifier.padding(horizontal = 12.dp)) {
                 when (val content = message.content) {
                     MessageTypeContent.RegularText -> {
                         TextMessage(
@@ -201,7 +206,8 @@ fun ChatMessageView(
                         Log.d("ChatView", "Unknown message type: ${'$'}content")
                     }
                 }
-                val useContainerHighlight = highlightSearchTerm.isNullOrBlank()
+                }
+                val useContainerHighlight = highlightSearchTerm.isNullOrBlank() || isSelected
                 if (isSelected && useContainerHighlight) {
                     Box(
                         modifier = Modifier

app/src/main/java/com/nextcloud/talk/ui/chat/ChatView.kt

@@ -326,7 +326,6 @@ fun ChatView(
             verticalArrangement = Arrangement.spacedBy(2.dp),
             contentPadding = PaddingValues(bottom = 20.dp),
             modifier = Modifier
-                .padding(start = 12.dp, end = 12.dp)
                 .fillMaxSize()
         ) {
             items(
@@ -346,12 +345,7 @@ fun ChatView(
                                     ?.takeIf { it.messageId == chatItem.uiMessage.id }
                                     ?.nonce,
                                 isSelected = state.highlightedMessageId == chatItem.uiMessage.id,
-                                highlightSearchTerm =
-                                if (state.highlightedMessageId == chatItem.uiMessage.id) {
-                                    state.highlightedSearchTerm
-                                } else {
-                                    null
-                                },
+                                highlightSearchTerm = state.highlightedSearchTerm,
                                 context = ChatMessageContext(
                                     isOneToOneConversation = state.isOneToOneConversation,
                                     conversationThreadId = state.conversationThreadId,
@@ -376,19 +370,19 @@ fun ChatView(
                     }
 
                     is ChatViewModel.ChatItem.DateHeaderItem -> {
-                        Box(modifier = Modifier.padding(top = 6.dp)) {
+                        Box(modifier = Modifier.padding(top = 6.dp, start = 12.dp, end = 12.dp)) {
                             DateHeader(chatItem.date)
                         }
                     }
 
                     is ChatViewModel.ChatItem.UnreadMessagesMarkerItem -> {
-                        Box(modifier = Modifier.padding(top = 6.dp)) {
+                        Box(modifier = Modifier.padding(top = 6.dp, start = 12.dp, end = 12.dp)) {
                             UnreadMessagesMarker()
                         }
                     }
 
                     is ChatViewModel.ChatItem.LoadGapItem -> {
-                        Box(modifier = Modifier.padding(top = 6.dp)) {
+                        Box(modifier = Modifier.padding(top = 6.dp, start = 12.dp, end = 12.dp)) {
                             DateHeaderLabel(text = stringResource(R.string.chat_messages_load_gap))
                         }
                     }