JSP: Welcome page
Depends on #266 (closed)
Include number of datasets under "number of accessions"
- Rename "ACCESSION MAP" to “Quick overview”
- Add “XXX Datasets” with link to Catalog/datasets page at https://catalog.genesys-pgr.org
Changes to the top navigation bar
- Remove "Home"
- Add Datasets menu in header:
Order: About Genesys, Browse, Datasets, Countries, Institutes, My List
Link to https://catalog.genesys-pgr.org/datasets
Update Controller and welcome page JSP.