Fix icon path error when passing asar (--conceal) flag (fix #975) (PR #1074)
Fix icon path error when passing asar (--conceal) flag (fix #975) (PR #1074)

By moving icon copy before packaging by `electron-packager` occurs.
jiahaog/Nativefier,jiahaog/Nativefier,jiahaog/Nativefier