fix(tui): change messages layout toggle keybinding from <leader>m to <leader>p

🤖 Generated with [opencode](https://opencode.ai)

Co-Authored-By: opencode <[email protected]>

packages/tui/internal/commands/command.go

@@ -279,7 +279,7 @@ func LoadFromConfig(config *opencode.Config) CommandRegistry {
 		{
 			Name:        MessagesLayoutToggleCommand,
 			Description: "toggle layout",
-			Keybindings: parseBindings("<leader>m"),
+			Keybindings: parseBindings("<leader>p"),
 		},
 		{
 			Name:        MessagesCopyCommand,