Dashboards: Cover the Switch variable in schema transformations - part 2. (#114549)

* feat: add v2alpha_1 conversion for the switch variable

* chore: gofmt fixes

* chore: update comments in tests

* chore: fix gofmt

* Update specs

* tests: update the v2alpha1 openapi snapshot

---------

Co-authored-by: Ivan Ortega <ivanortegaalba@gmail.com>

apps/dashboard/kinds/v2alpha1/dashboard_spec.cue

@@ -710,9 +710,9 @@ VariableCustomFormatterFn: {
 // `custom`: Define the variable options manually using a comma-separated list.
 // `system`: Variables defined by Grafana. See: https://grafana.com/docs/grafana/latest/dashboards/variables/add-template-variables/#global-variables
 VariableType: "query" | "adhoc" | "groupby" | "constant" | "datasource" | "interval" | "textbox" | "custom" |
-	"system" | "snapshot"
+	"system" | "snapshot" | "switch"
 
-VariableKind: QueryVariableKind | TextVariableKind | ConstantVariableKind | DatasourceVariableKind | IntervalVariableKind | CustomVariableKind | GroupByVariableKind | AdhocVariableKind
+VariableKind: QueryVariableKind | TextVariableKind | ConstantVariableKind | DatasourceVariableKind | IntervalVariableKind | CustomVariableKind | GroupByVariableKind | AdhocVariableKind | SwitchVariableKind
 
 // Sort variable options
 // Accepted values are:
@@ -970,6 +970,23 @@ AdhocVariableKind: {
 	spec: AdhocVariableSpec
 }
 
+// Switch variable specification
+SwitchVariableSpec: {
+	name:         string | *""
+	current:      string | *"false"
+	enabledValue:  string | *"true"
+	disabledValue: string | *"false"
+	label?:        string
+	hide:          VariableHide
+	skipUrlSync:   bool | *false
+	description?:  string
+}
+
+SwitchVariableKind: {
+	kind: "SwitchVariable"
+	spec: SwitchVariableSpec
+}
+
 ConditionalRenderingGroupKind: {
 	kind: "ConditionalRenderingGroup"
 	spec: ConditionalRenderingGroupSpec