feat(progress)!: model shouldn't conform to tea.Model

progress/progress.go

@@ -204,16 +204,11 @@ func New(opts ...Option) Model {
 // Deprecated: use [New] instead.
 var NewModel = New
 
-// Init exists to satisfy the tea.Model interface.
-func (m Model) Init() tea.Cmd {
-	return nil
-}
-
 // Update is used to animate the progress bar during transitions. Use
 // SetPercent to create the command you'll need to trigger the animation.
 //
 // If you're rendering with ViewAs you won't need this.
-func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
 	switch msg := msg.(type) {
 	case FrameMsg:
 		if msg.id != m.id || msg.tag != m.tag {