Add icons refactor repo structure

SongItem.h

@@ -1,19 +0,0 @@
-#pragma once
-#include <QString>
-#include <QRandomGenerator>
-#include <cstdint>
-
-class SongItem {
-public:
-    QString caption;
-    QString lyrics;
-    uint64_t uniqueId; // Unique identifier for tracking across playlist changes
-    QString file;
-    QString vocalLanguage; // Language override for vocal generation (ISO 639 code or empty)
-
-    inline SongItem(const QString &caption = "", const QString &lyrics = "")
-        : caption(caption), lyrics(lyrics) {
-        // Generate a unique ID using cryptographically secure random number
-        uniqueId = QRandomGenerator::global()->generate64();
-    }
-};