Namespace to Gateway changes. And more. See release notes for v3.0.0

Co-authored-by: Russell Vinegar <russell.vinegar@gov.bc.ca>
Co-authored-by: James Elson <james.elson@gov.bc.ca>
Co-authored-by: Elson9 <Elson9@users.noreply.github.com>
Co-authored-by: Russell Vinegar <38586679+rustyjux@users.noreply.github.com>

Feature/ns to gw (#1071)

* add return null

* scroll to top of details on nav from /list

Cypress tests for new features in `gwa` CLI from NS to GW.

* scroll to top, fix redirect for gateway detail

* add return null

* scroll to top of details on nav from /list

* Cypress/ns to gw cli tests (#1158)

Cypress tests for new features in `gwa` CLI from NS to GW.

* replace Namespace with Gateway in org permission (#1159)

* fix some capitlization

* fix no gw redirect handling and add toast

* match GatewayController activity in OrgController v3

* openapi update

* scroll to top, fix redirect for gateway detail

* add return null

* scroll to top of details on nav from /list

* Cypress/ns to gw cli tests (#1158)

Cypress tests for new features in `gwa` CLI from NS to GW.

* replace Namespace with Gateway in org permission (#1159)

* Feature/ns to gw redirect (#1162)

* fix some capitlization

* fix no gw redirect handling and add toast

* more details on login

* show error for invalid display name format

* reset edit display name input on cancel

* avoid white bg on button hover if disabled

* match GatewayController activity in OrgController v3 (#1171)

* match GatewayController activity in OrgController v3

* openapi update

clickable items in Gateways list

* reduce timeout

* use AuthProvider to handle redirecting for gateway pages

* use gatewayPages to determine if selector menu is shown

* remove your-products from gateways nav item

ns-to-gw final touches dev to test