feat: Add template display name (backend) (#4966)

* Rename to nameValidator

* Refactor: NameValid

* Fix: comment

* Define new migration

* Include display_name

* Update typesGenerated.ts

* Update meta

* Adjust tests

* CLI tests

* Fix: audit

* Fix: omitempty

* site: display_name is optional

* unit: TestUsernameValid

* entities.ts: add display_name

* site: TemplateSettingsPage.test.tsx

* Fix: TemplateSettingsForm.tsx

* Adjust tests

* Add comment to display_name column

* Fix: rename

* Fix: make

* Loosen regexp

* Fix: err check

* Fix: template name length

* Allow for whitespaces

* Update migration number

cli/templateedit.go

@@ -14,6 +14,7 @@ import (
 func templateEdit() *cobra.Command {
 	var (
 		name        string
+		displayName string
 		description string
 		icon        string
 		defaultTTL  time.Duration
@@ -40,6 +41,7 @@ func templateEdit() *cobra.Command {
 			// NOTE: coderd will ignore empty fields.
 			req := codersdk.UpdateTemplateMeta{
 				Name:             name,
+				DisplayName:      displayName,
 				Description:      description,
 				Icon:             icon,
 				DefaultTTLMillis: defaultTTL.Milliseconds(),
@@ -55,6 +57,7 @@ func templateEdit() *cobra.Command {
 	}
 
 	cmd.Flags().StringVarP(&name, "name", "", "", "Edit the template name")
+	cmd.Flags().StringVarP(&displayName, "display-name", "", "", "Edit the template display name")
 	cmd.Flags().StringVarP(&description, "description", "", "", "Edit the template description")
 	cmd.Flags().StringVarP(&icon, "icon", "", "", "Edit the template icon path")
 	cmd.Flags().DurationVarP(&defaultTTL, "default-ttl", "", 0, "Edit the template default time before shutdown - workspaces created from this template to this value.")