Adding aging mouse dataset

[morriscb]

• [x] Create 20241130 manifest
• [x] test download of all data with new manifest
• [x] upload data
• [x] create new notebooks
• [x] create new aging mouse pages
• [ ] iterate with science team on notebooks and pages
• [x] update intro.md (changelog and links)
• [ ] run all notebooks with new manifest
• [ ] update code ocean