Adapt crow to aloft

[peterdesmet]

• Add BALTRAD radars metadata
• Add new geojson map covering Europe
• Set appTemporalResolution to 15 min (= typical resolution of data), make charts a bit wider (648px to 720px)
• Update style to match https://aloftdata.eu/ (except for slight differences between Bootstrap v4 in crow vs v5 in aloftdata)
• Update text
• Disable unused components
• Remove unused logos