[AC-1911] Clients: Create components to manage client organization seat allocation (#8505)

* implementing the clients changes

* resolve pr comments on message.json

* moved the method to billing-api.service

* move the request and response files to billing folder

* remove the adding existing orgs

* resolve the routing issue

* resolving the pr comments

* code owner changes

* fix the assignedseat

* resolve the warning message

* resolve the error on update

* passing the right id

* resolve the unassign value

* removed unused logservice

* Adding the loader on submit button

libs/common/src/enums/feature-flag.enum.ts

@@ -7,6 +7,7 @@ export enum FeatureFlag {
   KeyRotationImprovements = "key-rotation-improvements",
   FlexibleCollectionsMigration = "flexible-collections-migration",
   ShowPaymentMethodWarningBanners = "show-payment-method-warning-banners",
+  EnableConsolidatedBilling = "enable-consolidated-billing",
 }
 
 // Replace this with a type safe lookup of the feature flag values in PM-2282