feat: place flipper in the center of the screen

Author: jon4hz

model.go

@@ -2,10 +2,12 @@ package main
 
 import (
 	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
 )
 
 type model struct {
-	flipper tea.Model
+	flipper       tea.Model
+	width, height int
 }
 
 func (m model) Init() tea.Cmd {
@@ -19,12 +21,17 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		case "ctrl+c":
 			return m, tea.Quit
 		}
+
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
 	}
+
 	var cmd tea.Cmd
 	m.flipper, cmd = m.flipper.Update(msg)
 	return m, cmd
 }
 
 func (m model) View() string {
-	return m.flipper.View()
+	return lipgloss.Place(m.width, m.height, lipgloss.Center, lipgloss.Center, m.flipper.View())
 }