add custom header

pkg/tui/views/dashboard/header.go

@@ -0,0 +1,32 @@
+package dashboard
+
+import (
+	"github.com/LazyBachelor/LazyPM/pkg/tui/styles"
+	"github.com/charmbracelet/lipgloss"
+)
+
+type Header struct {
+	title string
+}
+
+func NewHeader(title string) Header {
+	return Header{
+		title: title,
+	}
+}
+
+func (h Header) View(width int) string {
+	title := styles.HeaderTitleStyle.Render(h.title)
+
+	return lipgloss.PlaceHorizontal(
+		width,
+		lipgloss.Left,
+		title,
+		lipgloss.WithWhitespaceChars("─"),
+		lipgloss.WithWhitespaceForeground(styles.Primary),
+	)
+}
+
+func (h Header) Height() int {
+	return 2
+}