ctrlret: replaced return types of controllers from tea.Cmd to tea.Msg

This dramatically cuts downs the number of closures.

internal/common/ui/events/errors.go

@@ -16,5 +16,5 @@ type ModeMessage string
 // PromptForInput indicates that the context is requesting a line of input
 type PromptForInputMsg struct {
 	Prompt string
-	OnDone func(value string) tea.Cmd
+	OnDone func(value string) tea.Msg
 }