feat: update alumni and members, add award, modify project

[buchuitoudegou]

Changelog

Lab

1. Add link at members' name to their personal pages
2. Add new postdoc & phd members
3. Categorize alumni into three categories: graduated phds, postdocs, and others
4. New default avatar
5. Minor change: some styles

Publication

1. PREMIA award for GENTI and Spectral GNNs

Projects

1. New name for the graph project: scalable graph computation -> graph data mining and learning
2. Fundamental graph operators -> graph data analytics
3. Independent class for Aster in the graph project: graph system

[netlify]

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