NewInput creates a new input component.

NewMessage creates a new message.

NewStatusBar creates a new status bar.

Add this new function.

Add this struct after the Message struct.

DeleteSystemPromptsKeyMap defines the key bindings for the delete system prompts view.

Input represents the user input component.

Message represents a single message in the conversation.

Add ModelChangeMsg for notifying App about model changes.

SetViewMsg is used to change the current view.

StatusBar represents the status bar at the bottom of the screen.

ThemeChangeMsg is sent when the theme is changed.

MessageType represents the type of message (user, provider, search).