[DOC]: Update BLOGS section of cuGraph to reflect latest BLOGS including analytics series

[acostadon]

How would you describe the priority of this documentation request

High

Please provide a link or source to the relevant docs

https://docs.rapids.ai/api/cugraph/nightly/tutorials/cugraph_blogs/

Describe the problems in the documentation

cuGraph BLOGS sections haven't been updated since 2022.

• Add splash page with links to existing and descriptions of future BLOGS in analytic series
• Add links to other recent BLOGS done and planned by cuGraph developers (GNN, cuGraph Service MNMG)
• Update and refresh BLOGS and conference page to remove outdated links and add new content
• Add 2023 links with latest helpful links

(Optional) Propose a correction

No response

Code of Conduct

• I agree to follow cuGraph's Code of Conduct
• I have searched the open documentation issues and have found no duplicates for this bug report