Refactor ID retrieval logic in Database class

Simplify the return logic for getAlbumId, getArtistId, and getGenreId
functions by returning results directly when available or after
assignment.

src/Database.cpp

@@ -252,7 +252,7 @@ std::optional<int> db::getAlbumId( const std::string& albumTitle ) {
     if (sqlite3_step( stmt ) == SQLITE_ROW ) {
         id = sqlite3_column_int( stmt, 0 );
     }
-
+    return id;
 }
 
 std::optional<int> db::getArtistId( const std::string& artistName ) {
@@ -264,8 +264,9 @@ std::optional<int> db::getArtistId( const std::string& artistName ) {
 
     std::optional<int> id;
     if (sqlite3_step( stmt ) == SQLITE_ROW ) {
-        id = sqlite3_column_int( stmt, 0 );
+         return sqlite3_column_int( stmt, 0 );
     }
+    return id;
 }
 
 std::optional<int> db::getGenreId( const std::string& genre ) {
@@ -279,4 +280,5 @@ std::optional<int> db::getGenreId( const std::string& genre ) {
     if (sqlite3_step( stmt ) == SQLITE_ROW ) {
         id = sqlite3_column_int( stmt, 0 );
     }
+    return id;
 }

src/PlayerLocal.cpp

@@ -4,7 +4,6 @@
 #include "../include/Database.h"
 #include "../include/Containers.h"
 
-#include <memory>
 
 using db = Database;