fix: error handling for single member fetch

Signed-off-by: Infi <wingit@geist.ga>

app/src/main/java/chat/revolt/api/routes/server/Server.kt

@@ -71,6 +71,13 @@ suspend fun fetchMember(serverId: String, userId: String, pure: Boolean = false)
         headers.append(RevoltAPI.TOKEN_HEADER_NAME, RevoltAPI.sessionToken)
     }
 
+    try {
+        val error = RevoltJson.decodeFromString(RevoltError.serializer(), response.bodyAsText())
+        throw Error(error.type)
+    } catch (e: SerializationException) {
+        // Not an error
+    }
+
     val member = RevoltJson.decodeFromString(Member.serializer(), response.bodyAsText())
 
     if (!pure) {

app/src/main/java/chat/revolt/screens/chat/views/channel/ChannelScreenViewModel.kt

@@ -274,7 +274,13 @@ class ChannelScreenViewModel : ViewModel() {
                         if (it.channel != activeChannel?.id) return@onEach
 
                         addUserIfUnknown(it.author!!)
-                        activeChannel?.server?.let { s -> fetchMember(s, it.author) }
+                        activeChannel?.server?.let { s ->
+                            try {
+                                fetchMember(s, it.author)
+                            } catch (e: Exception) {
+                                Log.e("ChannelScreen", "Failed to fetch member", e)
+                            }
+                        }
                         regroupMessages(listOf(it) + renderableMessages)
                         ackNewest()
                     }