Revise folder/dashboard naming and set uids

[consideRatio]

We have partial use of unique ids for folders and dashboards specified. Searching for withUid shows that some but not all dashboards have unique id's.

Only one dashboard can be around with a unique id name, so if you deploy dashboards to another folder, they are relocated to the new folder and not duplicated.

Goals

• Consistently set UIDs for our dashboards
• Human readable default UIDs, as hardcoding them makes them non-unique globally anyhow
• Allow deploy.py to adjust UIDs in a way to deploy another set of dashboards in a folder without UID conflicts

Research

# pattern and example of viewing a dashboard
https://grafana.example.com/d/<dashboard-uid>/<url-friendly-dashboard-name>
https://grafana.example.com/d/616bafe7a50d5065/global-usage-dashboard

# pattern and example of viewing a folder's dashboards
https://grafana.example.com/dashboards/f/<folder-uid>/<url-friendly-folder-name>
https://grafana.example.com/dashboards/f/70E5EE84-1217-4021-A89E-1E3DE0566D93/jupyterhub-default-dashboards