Move corner fold to top right in 24 icons

Summary:

• Move corner fold to top right in 24 icons

Within these 24 icons:

• Make 16px versions of 2 icons (dark and light)
• Make 24px versions of 3 icons (dark and light)
• Make 24px symlink versions of 3 icons (dark and light)

Maybe not all icons look better now. Then I can revert that icons.

Closes T12806

Test Plan:
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Reviewers: VDG, ndavis, ngraham

Reviewed By: VDG, ndavis, ngraham

Subscribers: ngraham, kde-frameworks-devel

Tags: Frameworks

Maniphest Tasks: T12806

Differential Revision: https://phabricator.kde.org/D28203