Config Generation: Better names for all resources

[julienduchesne]

Follow-up to #1759: Added the resources that were missing + a safety cleanup so that all characters are allowed in the resource names

Closes #1745

Before:

resource "grafana_user" "_1" {
  email    = "admin@localhost"
  is_admin = true
  login    = "admin"
  password = "SENSITIVE_VALUE_TO_REPLACE"
}

After:

resource "grafana_user" "admin" {
  email    = "admin@localhost"
  is_admin = true
  login    = "admin"
  password = "SENSITIVE_VALUE_TO_REPLACE"
}

[github-actions]

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