fix(common): simplify favicon display

common/src/main/kotlin/dev/msfjarvis/claw/common/comments/CommentEntry.kt

@@ -20,9 +20,7 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
@@ -33,7 +31,6 @@ import androidx.compose.runtime.produceState
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.clip
 import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.buildAnnotatedString
@@ -115,21 +112,12 @@ fun PostLink(
     )
   ) {
     Row(modifier = Modifier.padding(16.dp), horizontalArrangement = Arrangement.spacedBy(16.dp)) {
-      if (linkMetadata.faviconUrl != null) {
       NetworkImage(
-          url = linkMetadata.faviconUrl!!,
+        url = linkMetadata.faviconUrl,
         placeholder = ClawIcons.Web,
         contentDescription = "",
         modifier = Modifier.size(24.dp),
       )
-      } else {
-        Icon(
-          painter = ClawIcons.Web,
-          contentDescription = null,
-          tint = MaterialTheme.colorScheme.onSecondary,
-          modifier = Modifier.clip(CircleShape),
-        )
-      }
       Text(
         text = linkMetadata.url,
         overflow = TextOverflow.Ellipsis,

common/src/main/kotlin/dev/msfjarvis/claw/common/ui/NetworkImage.kt

@@ -13,7 +13,7 @@ import coil.compose.AsyncImage
 
 @Composable
 fun NetworkImage(
-  url: String,
+  url: String?,
   placeholder: Painter,
   contentDescription: String,
   modifier: Modifier = Modifier,