tui: Error handling tweak

Moved errors to bottom of screen, fix infinite loop by typing errors
properly

pkg/tui/views/chat/chat.go

@@ -25,11 +25,13 @@ type (
 	}
 	// sent when a conversation's messages are laoded
 	msgConversationMessagesLoaded struct {
-		messages []api.Message
+		messages     []api.Message
 		rootMessages []api.Message
 	}
 	// a special case of common.MsgError that stops the response waiting animation
-	msgChatResponseError error
+	msgChatResponseError struct {
+		Err error
+	}
 	// sent on each chunk received from LLM
 	msgChatResponseChunk api.Chunk
 	// sent on each completed reply
@@ -72,9 +74,9 @@ const (
 
 type Model struct {
 	// App state
-	App		*model.AppModel
+	App    *model.AppModel
 	Height int
-	Width int
+	Width  int
 
 	// Chat view state
 	state           state // current overall status of the view
@@ -108,8 +110,8 @@ func Chat(app *model.AppModel) *Model {
 	m := Model{
 		App: app,
 
-		state:        idle,
-		persistence:  true,
+		state:       idle,
+		persistence: true,
 
 		stopSignal:      make(chan struct{}),
 		replyChan:       make(chan api.Message),