1.18.7.1 patch

• [Animation Panel] Add frame number when hovering on frame bars.
• [Preview Panel] Hold alt key to show tool hotkey.

Bugs

• [Add node] Fix adding node with custom function create two nodes.
• [Path] Fix node reallocate preview surface every update frame.
• [Pixel Sort] Fix node reallocate surfaces every update frame.
• [Draw Line] Fix error when connecting texture.
• Update some default collections.