Update sub repos for frontend & backend

Adjustments Backend:

• more restrictive deletion of device properties
• improvements of the openapi specs
• improvements of the search for contact names
• added orcids to sensorml for contact online resource
• websites for sites

Adjustments Frontend:

• sites & labs (instead of just sites)
• more options for aggregation types
• parent platform information for umount cards
• websites for sites
• download dialog for sensorml
• improved error message when violating unique mail constraint for contacts