画廊视图添加分组功能

[tianyunperfect]

Is your feature request related to a problem? Please describe. A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

Describe the solution you'd like A clear and concise description of what you want to happen. 我希望画廊视图能有分组功能，像notion这样，如图：

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