refactor: ui refactor step 2

internal/ui/utils/format.go

@@ -0,0 +1,13 @@
+package utils
+
+import "fmt"
+
+// FormatDuration wandelt Sekunden in einen MM:SS String um.
+func FormatDuration(totalSeconds int64) string {
+	if totalSeconds < 0 {
+		totalSeconds = 0
+	}
+	mins := totalSeconds / 60
+	secs := totalSeconds % 60
+	return fmt.Sprintf("%02d:%02d", mins, secs)
+}